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Готові списки джерел за темами / Key words: Triazole / Статті в журналах

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Статті в журналах з теми "Key words: Triazole"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Kishor, Raval* Kaushik Patel Shivani Patel Ronak Patel Snehal Patel. "A Review On 1,2,4-Triazoles." Journal of Pharma Research 1, no. 1 (2012): 1–4. https://doi.org/10.5281/zenodo.1098645.

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<strong><em>ABSTRACT</em></strong> <em>Triazole is a five membered heterocyclic system consisting of two carbon atoms and three nitrogen atoms shows wide range of biological activities. Triazoles can be synthesized using Einhorn-Brunner reaction or the Pellizzari reaction from acyl hydrazides and various different method. Triazole derivatives are showing very promising and excellent therapeutic effectiveness. The major activities exhibited by these derivatives include insecticial, antifungal, antiviral, antibacterial, sedative,hypnotic, anticonvulsant and anti-inflammatory action. In recent ye

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2

Kar, C., and K. Gupta. "Effect of triazole-type plant growth regulators on sunflower and safflower seed viability." Canadian Journal of Botany 69, no. 6 (1991): 1344–48. http://dx.doi.org/10.1139/b91-174.

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Pretreatment of sunflower and safflower seeds with triazole-type plant growth regulators (triazoles) diminished the rate of germination and reduced seedling growth. However, if seeds were aged at 90% relative humidity (accelerated ageing), triazoles significantly reduced the deleterious effects of accelerated ageing on germination percentage and field emergence. Seedling vigour was also greater in seedlings raised from triazole-treated seeds than from untreated seeds after accelerated aging. The activities of enzymes like dehydrogenase declined at a faster rate during accelerated ageing in unt

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3

Hajri, A., D. Alimi, K. Rtibi, and H. Sebai. "Novel 6-aryl-7-alkyl/aryl-[1,2,4]triazolo[4,3-a][1,3,5]triazine-5(6H)-thiones, processes for their preparation, characterization and evaluation of their in vitro antioxidant activity." Bulletin of the Chemical Society of Ethiopia 35, no. 3 (2022): 565–72. http://dx.doi.org/10.4314/bcse.v35i3.8.

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ABSTRACT. A series of nine new 6-aryl-7-alkyl/aryl-[1,2,4]triazolo[4,3-a][1,3,5]triazine-5(6H)-thiones (2a-i) were synthesized by a reaction of N-triazol-3-yl imidates (1) with three different isothiocyanate derivatives (RNCS) in refluxing toluene. The structures of the final heterocyclic compounds were confirmed by 1H-NMR, 13C-NMR, FT-IR, elemental analysis, and mass spectral analysis. The target compounds (2a-i) were in vitro screened for their activity as antioxidants using DPPH (2,2′-diphenyl-1-picrylhydrazyl) and FRAP (ferric reducing/antioxidant power) methods. The results revealed that

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4

J. Majid, Yasser, Wassan B. Ali, and Sahar R. Fadhel. "Spectroscopic determination of cobalt(II) ion by using azo dye of triazole derivatives." Bulletin of the Chemical Society of Ethiopia 38, no. 6 (2024): 1557–67. http://dx.doi.org/10.4314/bcse.v38i6.5.

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Highly efficient azo-day triazole derivatives carrying a π bond and OH electron donor groups have been designed, synthesized, and evaluated as colorimetric chemosensors for detecting metal ions in environmental samples, which was further supported by the functional theory studies and UV–Vis spectrophotometric experiment. The 4-amino-5-(2-((2,3-dimethylphenyl)amino)phenyl)-4H-1,2,4-triazole-3-thiol was directed to react with 3-nitrophenol during a diazotization type reaction to form an azo-day 4-((3-(2-((2,3-dimethylphenyl) amino)phenyl)-5-mercapto-4H-1,2,4-triazol-4-yl)diazenyl)-3-nitrophenol

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5

Ivany, J. A. "Mentha arvensis control with amino triazole and glyphosate." Canadian Journal of Plant Science 71, no. 2 (1991): 561–63. http://dx.doi.org/10.4141/cjps91-083.

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Field experiments showed that field mint (Mentha arvensis L.) could be controlled by using amino triazole or glyphosate applied where a crop was not present. Both herbicides gave comparable control with application at the six-leaf stage but, at the flowering stage, glyphosate was more effective than amino triazole, based on visual control rating in the year of application. Counts of regrowth shoots per square meter the next summer showed both herbicides to be equally effective in controlling field mint. Application at the flowering stage was more effective than at the six-leaf stage in one of

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6

Arafat, Mahmoud, Ehab Abdel-Latif, Fathy M. El-Taweel, Seif-Eldin N. Ayyad, and Khaled S. Mohamed. "Synthesis and biological assessment of new benzothiazolopyridine and benzothiazolyl- triazole derivatives as antioxidant and antibacterial agents." Bulletin of the Chemical Society of Ethiopia 36, no. 2 (2022): 451–63. http://dx.doi.org/10.4314/bcse.v36i2.17.

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ABSTRACT. A novel series of benzothiazolopyridine derivatives was synthesized via interaction of -2-(benzothiazol-2-yl)-3-(4-chlorophenyl)acrylonitrile (2) with a diverse of commercially available reagents (indandione, thiobarbituric acid, and malononitrile). Moreover, a novel group of benzothiazole linked substituted 1,2,3-triazole derivatives were synthesized by exploring the chemical behavior of 5-benzothiazolyl-2-(4-chlorophenyl)-triazol-4-amine through refluxing in glacial acetic acid, condensation with phthalic anhydride, and cyanoacetylation reactions. All newly synthetized compounds ha

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7

Hichri, S., N. Matoussi, and R. Abderrahim. "Synthesis and characterization of inclusion complex of -cyclodextrin and triazole picrate." Bulletin of the Chemical Society of Ethiopia 37, no. 4 (2023): 973–82. http://dx.doi.org/10.4314/bcse.v37i4.13.

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ABSTRACT. Inclusion complex between 3-amino-1,2,4-triazole picrate and β-cyclodextrin was synthesized in order to increase the picrate solubility. The complex was obtained by co-precipitation method and its stoichiometry is 1:1 (guest–host). The structure of picrate and complex has been established by UV, X-ray diffractometry powder spectra, TGA, DSC, IR, 1H NMR, and 13C NMR. The influence of the effect of pH on the complexation has been discussed. The value of apparent formation constant is 1.2 x 104.  KEY WORDS: Amino triazole, Picrate, Inclusion complex, pH Bull. Chem. Soc

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8

H. Sumrra, S., M. Anees, A. Asif, et al. "Synthesis, structural, spectral and biological evaluation of metals endowed 1,2,4-triazole." Bulletin of the Chemical Society of Ethiopia 34, no. 2 (2020): 335–51. http://dx.doi.org/10.4314/bcse.v34i2.11.

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Biologically active triazole Schiff base ligand 2,4-dichloro-6-[(1H-1,2,4-triazol-3-ylimino)methyl]phenol (A) has been synthesized by the condensation reaction of an equimolar amount of 1H-1,2,4-triazole-3-amine and 3,5-dichlorosalicylaldehyde and then it coordinated with salts of metals [VO(IV), Fe(II), Co(II), Ni(II), Cu(II) and Zn(II)] in 2:1 molar ratio to derive a series of transition metal chelates (1)-(6). All the compounds were characterized by various physical, spectral, analytical techniques and elemental analysis. Spectral characterization and magnetic moment data of complexes revea

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9

Meteab Khamees, Nidhal, Yusra Jalil Ahmed, Sinan Al-Bayati, Sarab Alazawi, and Anaam Rasheed. "Synthesis, characterization and bioactive evaluation of cobalt(II) and copper(II) complexes of {4-[5-(5-sulfanylidene-2,5-dihydro-1H-1,2,4-triazol-3-yl) furan-2-yl] phenyl} acetic acid." Bulletin of the Chemical Society of Ethiopia 38, no. 6 (2024): 1595–607. http://dx.doi.org/10.4314/bcse.v38i6.8.

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A new triazole derivative was synthesized by three steps. The first step involve adding 2-carboxyaledhyed furan to the 4-amino phenyl acetic acid after converting the substituted aromatic amine to the diazanium salt. In the first stage, [4-(5-formylfuran-2-yl) phenyl] acetic acid is the title of product. The second step is adding the thiosemicarbazide to the [4-(5-formylfuran-2-yl) phenyl] acetic acid which it gives the (4-{5-[(2-carbamothioylhydrazinylidene) methyl] furan-2-yl} phenyl) acetic acid. A final compound with the title {4-[5-(15-sulfanylidene-2,5-dihydro-1H-1,32,4-triazol-3-yl) fur

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10

Ramlath, K. T. "CORROSION INHIBITION STUDIES OF ALUMINIUM METAL IN 1 N SODIUM CHLORIDE SOLUTION BY SUBSTITUTED TRIAZOLES DERIVATIVES." International Journal of Advances in Engineering & Scientific Research 1, no. 1 (2014): 38–64. https://doi.org/10.5281/zenodo.10716068.

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<strong><em>ABSTRACT</em></strong> <em>Aluminum is an important metal used in industry since it is an excellent  electrical and thermal conductor with low density, high ductility, and good corrosion resistance. However, under most natural conditions unless special precautions are followed, metals undergo corrosion The subject of metallic corrosion has gained considerable importance during last few decades because of the increasing awareness of the enormous losses caused by corrosion damage. It has been reported that the the protective oxide film of aluminium can readily undergo corrosion

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11

B. Bakare, S. "Synthesis of novel nitrogen heterocycles bearing biological active carboxamide moiety as potential antitumor agents." Bulletin of the Chemical Society of Ethiopia 35, no. 2 (2021): 449–59. http://dx.doi.org/10.4314/bcse.v35i2.17.

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ABSTRACT. In the present study, synthesis of a simple series of nitrogen heterocycles containing N-(p-bromophenyl) carboxamide moiety, such as benzimidazole, benzoxazine, oxadiazole and triazole compounds, by using 4-bromo aniline and diethyl oxalate as a key starting material has been described. Five nitrogen heterocycles compounds moiety were evaluated for their anticancer activity against MCF-7 cell line. The results revealed that compound 8 (N-(4-bromophenyl)-5-thioxo-1,3,4-oxadiazole-2-carboxamide) was the most potent cytotoxic activity. Cell cycle analysis demonstrated that compound 8 in

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12

Amit, Chattree* and Neelottma Singh. "In-Silico Designing of 5-(3 Chloro-1-Benzothien-2yl)-4-Phenyl-4H-1,2,4 Triazole-3-Thiol derivatives and their Potential application on Fusarium Solani." Journal of Pharma Research 1, no. 2 (2012): 7–10. https://doi.org/10.5281/zenodo.1098653.

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<strong><em>ABSTRACT</em></strong> <em>In silico methods can help in identifying drug targets via bioinformatics tools. The use of computers and computational methods permeates all aspects of drug discovery and forms the core of structure-based drug design. High-performance computing, data management software and internet are facilitating the access of huge amount of data generated and transforming the massive complex biological data into workable knowledge in modern day drug discovery process. In the present work insilico designing of 5-(3 Chloro-1-benzothien-2yl)-4-phenyl-4H-1,2,4 triazole-3

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13

Nur'aini, Febrilia. "Control of Vascular Streak Dieback Disease of Cocoa with Flutriafol Fungicides." Pelita Perkebunan (a Coffee and Cocoa Research Journal) 30, no. 3 (2014): 229–39. http://dx.doi.org/10.22302/iccri.jur.pelitaperkebunan.v30i3.43.

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Vascular streak dieback caused by the fungus Oncobasidium theobromae is one of the important diseases in cocoa crop in Indonesia. One approach to control the disease is by using fungicides. The aim of this research was to determine the effect of class triazole fungicides to the intensity of the vascular streak dieback disease on cocoa seedling phase, immature and mature cocoa. Experiments were conducted in Kotta Blater, PTPN XII and Kaliwining, Indonesian Coffee and Cocoa Research Institute. Flutriafol 250 g/l with a concentration 0,05%, 0,1% and 0,15% foliar sprayed on cocoa seedlings, immatu

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14

Ramlath, K. T. "THEORETICAL AND EXPERIMENTAL FT-IR , OPTIMISED MOLECULAR GEOMETRY, HOMO–LUMO,MULLIKEN CHARGES AND NBO ANALYSIS OF SOME SUBSTITUTED TRIAZOLES." International Journal of Advances in Engineering & Scientific Research 1, no. 2 (2014): 56–79. https://doi.org/10.5281/zenodo.10720144.

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<strong>ABSTRACT</strong>                        <em> Quantum chemical calculations have been widely used to monitor reaction mechanisms, to study inhibition of the corrosion of metals. DFT is considered as a very useful technique to probe as well as to analyze the experimental data. </em> <em>This study proposes a joint experimental and theoretical investigation of FTIR and vibrational characteristics of Triazoles (4-amino- 4H-1, 2, 4-triazole-3, 5-dimethanol(ATD ) and 3-amino-5-methy

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15

Abd Alrazzak, Nour. "Synthesis of new azo compounds based on 4-aminosalicylic acid and study anti-corrosive activity." Bulletin of the Chemical Society of Ethiopia 38, no. 2 (2024): 473–79. http://dx.doi.org/10.4314/bcse.v38i2.14.

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New azo dyes were prepared from 4-amino-2-hydroxy-benzoic acid in two steps; the first step includes preparation the diazonium salt. Then, diazonium compound coupled with different aromatic compounds containing donating groups (orcinol, 2,6-dimethylphenol, hydroquinone, catechol, 1,2,4-triazole, 2-methyl-naphthol and 4-toluidine, respectively). The physical properties of synthesized compounds were studied like melting point and solubility. The target molecules were characterized using FTIR, NMR and CHNS techniques. The activity of the compounds 1, 3 and 5 as anticorrosion on carbon steel in 0.

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16

M. Garoub, Mohannad, and Ayman A. Gouda. "An efficient ionic liquid-based cloud point extraction to preconcentrate mercury in environmental samples and hair of occupational workers before spectrophotometric detection." Bulletin of the Chemical Society of Ethiopia 36, no. 4 (2022): 767–78. http://dx.doi.org/10.4314/bcse.v36i4.4.

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ABSTRACT. Mercury preconcentration in environmental samples and hair of occupational workers prior to spectrophotometric detection was described using a unique, eco-friendly, and quick ionic liquid-based cloud point extraction method. The discovered method used an ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate with Triton X-114 as an extracting phase in the presence of a new chelating agent 3-(2-hydroxy-5-ethoxycarbonylphen-1-ylazo)-1,2,4-triazole at pH 7.0 to separate mercury and measure the complex spectrophotometrically at wavelength 550 nm. The effects of several analytical f

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17

Dushkin, A. D., P. O. Narusova, S. S. Andreev, et al. "Risk factors for adverse outcome in invasive candidiasis." Infekcionnye bolezni 23, no. 1 (2025): 65–72. https://doi.org/10.20953/1729-9225-2025-1-65-72.

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Invasive candidiasis, characterized by a severe course and high mortality, is one of the most common healthcare-associated infections. Objective. To determine the risk factors for lethal outcome in patients with invasive candidiasis and candidemia hospitalized in a multidisciplinary hospital in the city of Moscow in the period from 2020 to 2023. Patients and methods. A cohort single-center retrospective study was conducted, which included 169 patients with invasive candidiasis and candidemia aged 19 to 94 years, divided into 2 groups: favorable outcome (recolestation) and unfavorable (fatal) o

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18

Srinivasan, US. "Intracranial Aspergilloma in Immunocompetent Patients Successfully Treated with Radical Surgical Intervention and Antifungal Therapy – Case Series." Annals of the Academy of Medicine, Singapore 37, no. 9 (2008): 783–87. http://dx.doi.org/10.47102/annals-acadmedsg.v37n9p783.

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Introduction: Aspergillosis of the central nervous system is an uncommon infection, mainly occurring in immunocompromised patients with a high mortality. Surgical excision of the intracranial lesion combined with oral voriconazole has been proposed to improve the outcome in immunocompromised patients. Itraconazole has been considered not to be effective because of poor penetration into the brain tissue. We report the long-term outcome of 3 cases of intracranial aspergilloma in immunocompetent patients who were successfully treated with radical surgery combined with oral itraconazole. Materials

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19

G.Venkata, Ramana and T.Mangilal. "FORMULATION AND EVALUATION OF FLUCONAZOLE PATCHES FOR BUCCAL DRUG DELIVERY ROUTE." Indo American Journal of Pharmaceutical Sciences 04, no. 12 (2017): 4673–81. https://doi.org/10.5281/zenodo.1127691.

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Fluconazole is a first-generation triazole antifungal medication that generally used to treat serious, invasive fungal infections. These are generally seen in patients who are immune compromised, and include invasive candidiasis, invasive aspergillosis, and certain emerging fungal infections. In the present study buccal drug delivery of Fluconazole was developed to overcome the first pass metabolism and to reduce the frequency of dosing compared to oral route. Matrix type of buccal patches were developed by using polymers HPMCK4M and HPMCK100M.Buccal patches were prepared by employing solvent

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20

Shepelskaya, NR, and YaV Kolyanchuk. "Reproductive toxicity of triazole fungicides cyproconazole and epoxiconazole when exposed to male and female wistar rats during gametogenesis." One Health and Nutrition Problems of Ukraine 54, no. 1 (2021): 52–61. http://dx.doi.org/10.33273/2663-9726-2021-54-1-52-61.

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Aim. Studying the effect of generic pesticides cyproconazole (98 %) and two samples of epoxiconazole (epoxiconazole 1 — 95,75 % and epoxiconazole 2 — 98,7 %) on the reproductive system of male and female Wistar Han rats at the level of the organism when exposed during gametogenesis, identification and characterization of their hazard, as well as assessment of the risk of reproductive toxicity of these compounds. Materials and Methods. The test samples were administered daily (5 days a week) by oral gavage at doses of 0.2 and 2.0 mg/kg for cyproconazole and 0.5 and 2.0 mg/kg for epoxiconazoles

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21

Katsuwon, J., and A. J. Anderson. "Characterization of catalase activities in a root-colonizing isolate of Pseudomonas putida." Canadian Journal of Microbiology 38, no. 10 (1992): 1026–32. http://dx.doi.org/10.1139/m92-169.

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Pseudomonas putida, a saprophytic root-colonizing bacterium, produces multiple forms of catalase. Catalase A, which increases in specific activity during growth phase and after treatment with H2O2, is located in the cytoplasm and is inhibited by 3-amino-1,2,4-triazole, EDTA, and cyanide, but not by chloroform–methanol treatment. Catalase B, which is induced by external H2O2 or during stationary phase of growth, is membrane associated and is inhibited by chloroform–methanol, EDTA, and cyanide, but not by aminotriazole. Catalase A has a broad pH optimum, from pH 6.0 to 11.0, with two peaks, at p

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22

T., Mangilal1 K.Chitra* J. Naveen M.Ravi Kumar. "FORMULATIONANDEVALUATIONOFVORICONAZOLE BUCCAL PATCHES BY USING SELECTED POLYMERS." Indo American Journal of Pharmaceutical Sciences 05, no. 05 (2018): 4072–87. https://doi.org/10.5281/zenodo.1251171.

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<em>The aim of the present study is to formulate and evaluate Voriconazole Buccal Patches.</em><em> Voriconazole is a triazole antifungal drug that is generally used to treat serious, invasive fungal infections. These are generally seen in patients who are immune compromised, and include invasive candidiasis, invasive aspergillosis, and certain emerging fungal infections. In the present study buccal drug delivery of Voriconazole was developed Matrix type of buccal patches was developed by using polymers such as  Chitosan and Eudragit S 100. Buccal p

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23

Rakow, G., and R. K. Downey. "Tribute summer rape." Canadian Journal of Plant Science 73, no. 1 (1993): 189–91. http://dx.doi.org/10.4141/cjps93-031.

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Tribute summer rape (Brassica napus L.), registered in 1985, is a triazine-tolerant, canola-quality cultivar. It is early maturing and produces seed with low seed chlorophyll content. Tribute has yield and seed oil content similar to other triazine-tolerant cultivars such as OAC Triton. Tribute is better adapted than OAC Triton to the B. napus growing areas of western Canada because of its earlier maturity. However, it should not be planted on fields which have a history of heavy blackleg infestations. Key words: Rape (summer), triazine-tolerant, cultivar description

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24

GAYNOR, J. D., J. A. STONE, and T. J. VYN. "TILLAGE SYSTEMS AND ATRAZINE AND ALACHLOR RESIDUES ON A POORLY DRAINED SOIL." Canadian Journal of Soil Science 67, no. 4 (1987): 959–63. http://dx.doi.org/10.4141/cjss87-091.

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Seasonal residues of an acetanilide and triazine herbicide were monitored in ridge, conventional, and zero tillage systems. Alachlor (2-chloro-2′,6′-diethyl-N-(methoxymethyl)acetanilide), and atrazine (2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine) residues were less than 8% of the spring application concentration at the end of the growing season. Moldboard plowing in the fall reduced herbicide residues in spring because of soil dilution by plowing to greater than the sampling depth. Ridge tillage systems had higher spring residues apparently because of reduced herbicide dissipation on

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25

BLAIR, R., R. MISIR, J. M. BELL, and D. R. CLANDININ. "THE CHEMICAL COMPOSITION AND NUTRITIONAL VALUE FOR CHICKENS OF MEAL FROM RECENT CULTIVARS OF CANOLA." Canadian Journal of Animal Science 66, no. 3 (1986): 821–25. http://dx.doi.org/10.4141/cjas86-090.

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Meals of Triazine-tolerant and Westar canola were found to be similar in chemical composition and nutrient content to commercial canola meal. Male broiler chickens grew at a similar rate from 2 to 4 wk when fed diets based on 20% commercial canola meal, meal from the cultivars, or soybean meal. Key words: Canola, cultivars, composition, nutrition, feedstuffs, chickens

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26

Vaughan, Keith, Elizabeth Turner, and Hilary Jenkins. "1,2-Bis-(1-{3-pyridyl-}3-methyltriazen-3-yl)ethane: Synthesis and X-ray crystal structure." Canadian Journal of Chemistry 82, no. 3 (2004): 448–53. http://dx.doi.org/10.1139/v03-213.

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3-Aminopyridine is diazotized in the conventional manner and the diazonium salt coupled with N,N ′-dimethylethylenediamine to afford the title compound (1), which is a potential antitumour agent. The compound has been characterized by spectroscopic methods. The 1H NMR spectrum shows evidence of rotational conformerism, from the observation of broadening of the N-methyl signals in the room-temperature spectrum. Low-temperature NMR spectra (down to 223 K) show the presence of three distinct rotamers. The crystal structure of 1,2-bis-(1-{3-pyridyl-}3-methyltriazen-3-yl)ethane (1) has been determi

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27

Simal, François, Dominique Jan, Lionel Delaude, Albert Demonceau, Marie-Rose Spirlet, and Alfred F. Noels. "Evaluation of ruthenium-based complexes for the controlled radical polymerization of vinyl monomers." Canadian Journal of Chemistry 79, no. 5-6 (2001): 529–35. http://dx.doi.org/10.1139/v00-206.

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New complexes of the type RuCl2(p-cymene)L where the ligand L is either a phosphine or a stable triazolinylidene carbene have been tested and compared to the Grubbs' benzylidene complex RuCl2(=CHPh)(PCy3)2 as catalyst precursors for the controlled atom transfer radical polymerization (ATRP) of methyl methacrylate and of various para-substituted styrenes. Kinetic data and Hammett ρ constants are reported, as well as the X-ray structure of the ortho-metallated triazolinylidene-ruthenium(II) complex RuCl(p-cymene)[1,2-phenylene[3,4-diphenyl-1H-1,2,4-triazol-1-yl-5(4H)-ylidene]].Key words: rutheni

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28

Little, Vanessa Renée, Reid Tingley, and Keith Vaughan. "Triazene derivatives of (1,x)-diazacycloalkanes. Part III. Synthesis and characterization of a series of 1,4-di[2-aryl-1-diazenyl]piperazines." Canadian Journal of Chemistry 83, no. 5 (2005): 471–76. http://dx.doi.org/10.1139/v05-064.

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Анотація:

Reaction of a series of diazonium salts with piperazine in a 2:1 molar ratio affords excellent yields of the 1,4-di-[2-aryl-1-diazenyl]piperazines (3), which have been characterized by IR and NMR spectroscopy. Structural characterization is supported by elemental analysis or by mass spectrometry with accurate mass measurement of the molecular ion. The protons of the piperazine ring hydrogens give rise to a sharp singlet at ca. 4 ppm in the NMR spectra, indicating that the conformational equilibrium in the piperazine ring is rapid on the NMR timescale. The four equivalent carbon atoms of the pi

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29

Indrati, Retno, and Yoshiyuki Ohta. "Purification and properties of alcohol dehydrogenase from a mutant strain of Candida guilliermondii deficient in one form of the enzyme." Canadian Journal of Microbiology 38, no. 9 (1992): 953–57. http://dx.doi.org/10.1139/m92-153.

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Анотація:

Alcohol dehydrogenase (ADH1) was purified from Candida guilliermondii strain B10-05 to homogeneity, using affinity chromatography on triazine dyes and gel filtration. The enzyme was tetrameric, with a subunit molecular weight of 38 000. The purified enzyme oxidized primary and secondary alcohols, although it preferred primary alcohols. Its activity toward secondary alcohols was better than those of other yeast ADH; however, the enzyme was less sensitive toward inhibitors. Kinetic studies indicated that C. guilliermondii ADH1 oxidized ethanol by an ordered bi–bi mechanism, with NAD as the first

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30

Fadhil Abbas, Bayader, Mahmoud Najim Abid Al-Jibouri, and Fatima Haitham Zuhair. "Mixed ligands of (E)-1-(3-(((1H-1,2,4-triazol-3-yl)imino)methyl)-4-hydroxy-5- methoxyphenyl)ethan-1-one and chloroanilic acid: Synthesis, characterization and thermal stability study." Bulletin of the Chemical Society of Ethiopia 39, no. 8 (2025): 1549–58. https://doi.org/10.4314/bcse.v39i8.8.

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Анотація:

The present work involved the synthesis, characterization and thermal study of metal complexes of Co(II), Cu(II), Ni(II) and Zn(II) derived from mixed ligands;HL1: (E)-1-(3-(((1H-1,2,4-triazol-3-yl)imino)methyl)-4-hydroxy-5-methoxyphenyl)ethan-1-one and H2L2: 2,3-dichloro-5,6-dihydroxycyclohexa-2,5-diene-1,4-dione. The new ligands and their metal complexes were fully identified on the basis of FT-IR, EI-MS, NMR, UV-Visible spectroscopy, molar conductivity and magnetic susceptibility measurements. The new metal complexes were prepared in their solutions in ethanol and in solid state with respec

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31

Hajri, Azhar, Tarek Zmantar, Hisham N. Altayb, Bochra Kouidhi, and Kamel Chaieb. "Synthesis, antibacterial, antibiofilm evaluation and molecular docking studies of 3-methyl- 2-propyl-2H-[1,2,4]triazolo[4,3b] [1,2,4,6]thiatriazine-1,1-dioxide." Bulletin of the Chemical Society of Ethiopia 36, no. 1 (2022): 109–17. http://dx.doi.org/10.4314/bcse.v36i1.10.

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ABSTRACT. In the current study, a simple method for the synthesis of 3-methyl-2-propyl-2H-[1,2,4]triazolo[4,3b][1,2,4,6]thiatriazine-1,1-dioxide (2) was carried out. In the presence of pyridine, a reaction between amidine (1) and sulfuryl chloride occurs. FTIR spectroscopy, 1H and 13C NMR, mass spectra, and elemental analysis were utilized in order to verify the structure of a novel synthetic molecule. The antibacterial activities of compound (2) were tested against eight pathogenic bacteria and the minimum inhibitory concentration as well as minimum bactericidal concentration were determined.

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32

Robinson, D. E., J. T. O’Donovan, M. P. Sharma, D. J. Doohan, and R. Figueroa. "The biology of Canadian weeds. 123. Senecio vulgaris L." Canadian Journal of Plant Science 83, no. 3 (2003): 629–44. http://dx.doi.org/10.4141/p01-124.

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Анотація:

Senecio vulgaris L. is a native of Eurasia, and has been introduced to and become naturalized in North America, South America, Africa and Australia. In Canada, it is found in all provinces and the Northwest and Yukon Territo ries. High fecundity, rapid wind dispersal, continuous germination under a wide range of growing conditions, rapid growth rate, ability to set seed a number of times per growing season and lack of chemical control options has made this species an importan t weed of some horticultural crops. This species produces pyrrolizidine alkaloids that have been implicated as a cause

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33

Costea, M., S. E. Weaver, and F. J. Tardif. "The biology of Canadian weeds. 130. Amaranthus retroflexus L., A. powellii S. Watson and A. hybridus L." Canadian Journal of Plant Science 84, no. 2 (2004): 631–68. http://dx.doi.org/10.4141/p02-183.

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Анотація:

A review of the biological information published after 1980 is provided for three species of the genus Amaranthus: A. retroflexus L., A. powellii S. Watson and A. hybridus L. The three species are noxious weeds introduced to Canada from southern North America. Their geographical distribution has remained almost unchanged since the original paper published in 1980. The plants exhibit a high phenotypic plasticity and genetic variability and they easily adapt to a multitude of agrestal and ruderal habitats. The seeds contribute to a persistent seed bank; they exhibit a variable dormancy and polym

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34

Costea, Mihai, Susan E. Weaver, and François J. Tardif. "The Biology of Invasive Alien Plants in Canada. 3. Amaranthus tuberculatus (Moq.) Sauer var. rudis (Sauer) Costea & Tardif." Canadian Journal of Plant Science 85, no. 2 (2005): 507–22. http://dx.doi.org/10.4141/p04-101.

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Анотація:

This annual dioecious weed was found in 2002 and 2003 infesting soybean fields in southwestern Ontario, and it was collected in 1992 from waste places in British Columbia. It is a major weed problem in field crops in the mid-western United States, where it has become increasingly difficult to control during the past 10 yr. Morphological differences between Amaranthus tuberculatus var. rudis and var. tuberculatus are presented. A review of the biological information published is provided. Plants exhibit high phenotypic plasticity and genetic variability. Emergence is prolonged, growth rapid, an

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35

Little, Vanessa Renée, and Keith Vaughan. "Synthesis and characterization of a series of 1-methyl-4-[2-aryl-1-diazenyl]piperazines and a series of ethyl 4-[2-aryl-1-diazenyl]-1-piperazinecarboxylates." Canadian Journal of Chemistry 82, no. 8 (2004): 1294–303. http://dx.doi.org/10.1139/v04-081.

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Анотація:

1-Methylpiperazine was coupled with a series of diazonium salts to afford the 1-methyl-4-[2-aryl-1-diazenyl]piperazines (2), a new series of triazenes, which have been characterized by 1H and 13C NMR spectroscopy, IR spectroscopy, and elemental analysis. Assignment of the chemical shifts to specific protons and carbons in the piperazine ring was facilitated by comparison with the chemical shifts in the model compounds piperazine and 1-methylpiperazine and by a HETCOR experiment with the p-tolyl derivative (2i). A DEPT experiment with 1-methylpiperazine (6) was necessary to distinguish the meth

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36

Vaughan, Keith, Shasta Lee Moser, Reid Tingley, M. Brad Peori, and Valerio Bertolasi. "Triazene derivatives of (1,x-)diazacycloalkanes. Part VI. 3-({5,5-Dimethyl-3-[2-aryl-1-diazenyl]-1-imidazolidinyl}methyl)-4,4-dimethyl-1-[2-aryl-1-diazenyl]imidazolidines — Synthesis, characterization, and X-ray crystal structure." Canadian Journal of Chemistry 84, no. 10 (2006): 1294–300. http://dx.doi.org/10.1139/v06-091.

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Анотація:

Reaction of a series of diazonium salts with a mixture of formaldehyde and 1,2-diamino-2-methylpropane affords the 3-({5,5-dimethyl-3-[2-aryl-1-diazenyl]-1-imidazolidinyl}methyl)-4,4-dimethyl-1-[2-aryl-1-diazenyl]imidazolidines (1a–1f) in excellent yield. The products have been characterized by IR and NMR spectroscopic analysis, elemental analysis, and X-ray crystallography. The X-ray crystal structure of the p-methoxycarbonyl derivative (1c) establishes without question the connectivity of these novel molecules, which can be described as linear bicyclic oligomers with two imidazolidinyl group

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37

McMullan, Patrick M., James K. Daun, and Douglas R. DeClercq. "Effect of wild mustard (Brassica kaber) competition on yield and quality of triazine-tolerant and triazine-susceptible canola (Brassica napus and Brassica rapa)." Canadian Journal of Plant Science 74, no. 2 (1994): 369–74. http://dx.doi.org/10.4141/cjps94-071.

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Анотація:

Research was conducted at two sites near Brandon, Manitoba, in 1990 and 1991 to determine the influence of time of removal of wild mustard from triazine-tolerant (TT) or triazine-susceptible (TS) canola and the effects of wild mustard seed contamination on canola seed yield and oil characteristics. Wild mustard was removed by either cyanazine or ethametsulfuron at the two-to-four-leaf or the four-to-eight-leaf stage of wild mustard in each of six canola cultivars. Wild mustard decreased harvested seed yield of canola, and the presence of wild mustard seed in harvested canola seeds increased me

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38

Tingley, Reid, and Keith Vaughan. "Triazene derivatives of (1,x)-diazacycloalkanes. Part VII. Synthesis of a series of 1-aryl-2-[3-(3-[2-aryl-1-diazenyl]-1,3-diazepan-1-ylmethyl)-1,3-diazepan-1-yl]-1-diazenes from the reaction of diazonium salts with mixtures of formaldehyde and 1,4-diaminobutane." Canadian Journal of Chemistry 84, no. 10 (2006): 1434–41. http://dx.doi.org/10.1139/v06-123.

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Анотація:

A new series of bistriazenes, the 1-aryl-2-[3-(3-[2-aryl-1-diazenyl]-1,3-diazepan-1-ylmethyl)-1,3-diazepan-1-yl]-1-diazenes (8), has been synthesized from the reaction of diazonium salts with a mixture of 1,4-diaminobutane and formaldehyde. All new compounds of series 8 have been characterized by IR and NMR spectroscopy, and the elemental composition of selected examples has been verified by elemental analysis. The connectivity of the series has been unequivocally determined by X-ray crystallography. The new bistriazenes are important because the structure contains the novel saturated heterocy

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39

Mohammed Alsuhaibani, Amnah, Abdel Majid A. Adam, Moamen S. Refat, Mohamed I. Kobeasy, Safyah B. Bakare, and Eman Salah Bushara. "Spectroscopic, thermal, and anticancer investigations of new cobalt(II) and nickel(II) triazine complexes." Bulletin of the Chemical Society of Ethiopia 37, no. 5 (2023): 1151–62. http://dx.doi.org/10.4314/bcse.v37i5.8.

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ABSTRACT. The condensation of thiosemicarbazide with oxazolidinone produced 5-benzylidene-3-(4-chloro-phenyl)-6-oxo-5,6-dihydro-1H-[1,2,4]triazine-2-carbothioic acid amide (HL1). Co(II) and Ni(II) ions were reacted with the HL1 ligand. Elemental analysis and molar conductivity, along with mass, 1H-NMR, IR, UV-Vis, and X-ray powder diffraction spectral examinations, were used to reveal the chemical structure of the synthesized complexes. The stoichiometry of the complexes was determined to be 1:2 (metallic: moiety) using analytical, spectroscopic, and thermal data. The thermal properties of the

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40

SMITH, A. E., and A. WALKER. "PREDICTION OF THE PERSISTENCE OF THE TRIAZINE HERBICIDES ATRAZINE, CYANAZINE, AND METRIBUZIN IN REGINA HEAVY CLAY." Canadian Journal of Soil Science 69, no. 3 (1989): 587–95. http://dx.doi.org/10.4141/cjss89-059.

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Анотація:

The persistence of the herbicides cyanazine, metribuzin, and atrazine was studied at different controlled temperature and moisture contents in Regina Heavy Clay soil. Degradation of the herbicides approximated first-order kinetics at temperatures in the range 5–30 °C and at moistures of above 20%. The breakdown of cyanazine was faster than metribuzin, which, in turn, was more rapid than atrazine. The breakdown of the three herbicides under field conditions, following June applications of 1.0 kg ha−1, was measured. Over 90% of the applied cyanazine had dissipated within 56 d, while the metribuz

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41

Entry, James A., and William H. Emmingham. "The Influence of dairy manure on atrazine and 2,4-dichlorophenoxyacetic acid mineralization in pasture soils." Canadian Journal of Soil Science 75, no. 3 (1995): 379–83. http://dx.doi.org/10.4141/cjss95-054.

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Анотація:

The influence of manure application to pasture soils on bacterial and fungal biomass and the atrazine (2 chloro-4 [ethylamino]-6[isopropylamino]-s-triazine) and 2,4-D (2,4 dichlorophenoxyacetic acid) mineralization was assessed in microcosms using radiometric techniques. Additions of 5 tonnes manure ha−1 yr−1 were made to three pasture soils over 20 yr in western Oregon at a rate of 0.42 t ha−1 each month. No manure or fertilizer was added to control treatments. We found greater amounts of total fungal and bacterial biomass in soils that received added manure. There were no differences among a

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42

Costea and F. J. Tardif, M. "The biology of Canadian weeds. 126. Amaranthus albus L., A. blitoides S. Watson and A. blitum L." Canadian Journal of Plant Science 83, no. 4 (2003): 1039–66. http://dx.doi.org/10.4141/p02-056.

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Анотація:

A review of biological information is provided for three species of the genus Amaranthus: A. albus L., A. blitoides S. Watson and A. blitum L. The last species has been revised taxonomically and a new subspecies for Canada is presented-A. blitum subsp. emarginatus (Moq. ex Uline & Bray) Carretero, Munoz Garmendia & Pedrol. Amaranthus albus and A. blitoides are native to the U.S.A. and introduced to Canada. Both species are annual ruderal and agrestal weeds. During the past 100 yr the two species have spread across most provinces of Canada, but the greatest frequency and abundance have

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43

Sprout, Sharon L., Louise M. Nelson, and James J. Germida. "Influence of metribuzin on the Rhizobium leguminosarum–lentil (Lens culinaris) symbiosis." Canadian Journal of Microbiology 38, no. 4 (1992): 343–49. http://dx.doi.org/10.1139/m92-058.

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Анотація:

The effects of the triazine herbicide metribuzin (Sencor) on the lentil (Lens culinaris Medic.) - Rhizobium leguminosarum biovar viciae symbiosis were studied in Leonard jars and growth pouches. Lentils inoculated with Rhizobium leguminosarum strain 128C54 or 128C84, and noninoculated lentils grown in plant nutrient solution supplemented with 5 mM KNO3, had metribuzin applied to the plants at either 8 or 13 days after planting. When sprayed at 8 days, metribuzin had a significant (p ≤ 0.05) negative effect on plant weight, number of nodules, taproot growth, and acetylene reduction activity. Fi

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44

BELL, J. M., and M. O. KEITH. "FEEDING VALUE FOR PIGS OF CANOLA MEAL DERIVED FROM WESTAR AND TRIAZINE-TOLERANT CULTIVARS." Canadian Journal of Animal Science 67, no. 3 (1987): 811–19. http://dx.doi.org/10.4141/cjas87-084.

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Анотація:

Oil-extracted meals from Westar (WCM) and triazine-tolerant (TCM) canola seed (B. napus) were fed at levels of 0, 10, 20 and 30% of the diet to seven barrows of 35 kg initial weight in digestibility trials conducted in four successive replicates. The digestion coefficients for energy were 66 and 69%, respectively, and for crude protein were 76 and 80%. The corresponding digestible energy values were 13.31 and 13.96 MJ kg−1, respectively, and the digestible crude protein values were 32.6 and 37.5%, indicating that the WCM sample was inferior to the TCM sample. The meals were compared in a feedi

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45

HICKLENTON, PETER R. "HEIGHT CONTROL OF POT CHRYSANTHEMUMS WITH PRE- AND POST-PLANT TREATMENTS OF DAMINOZIDE AND UNICONAZOLE." Canadian Journal of Plant Science 70, no. 3 (1990): 925–30. http://dx.doi.org/10.4141/cjps90-113.

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This study investigated the effects of growth retardants uniconazole [(E) - (p-chlorohenyl) -4, 4-dimethyl-2-(1,2,4-triazol-1-yl)-1-penten-3-ol] and daminozide (butanedioic acid mono 2,2-dimethylhydrazide) on three chrysanthemum (Dendranthema grandiflora Tzvelev.) cultivars. Uniconazole applied as a soil drench (0.02 mg a.i. pot−1) or foliar spray (0.014 mg a.i. pot−1) 10 d after removal of the shoot tip reduced plant height at harvest in cultivars Deep Luv, Tip and Tara. Higher doses of uniconazole resulted in further plant height reduction in Tip and Tara but not in Deep Luv. Daminozide spra

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46

Mozaffari, Mahmood S., Worku Abebe, and Brett K. Warren. "Renal adenosine A3 receptors in the rat: assessment of functional role." Canadian Journal of Physiology and Pharmacology 78, no. 5 (2000): 428–32. http://dx.doi.org/10.1139/y00-007.

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Анотація:

The functional roles of adenosine A3 receptors in the rat kidney were assessed for the first time with respect to A1 receptor-mediated responses. Utilizing a chronically instrumented conscious rat preparation, we tested renal excretory responses to acute administration of the A3 receptor antagonists 3-ethyl - 5-benzyl-2-methyl-6-phenyl- 4-phenylethynyl-1,4-(+)-dihydropridine-3,5-dicarboxylate (MRS-1191) and 9-chloro-2-(2-furyl)-5-phenylacetylamino- [1,2,4]-triazolo[1,5-c]quinazoline (MRS-1220) with reference to the effects of the A1 receptor antagonist 1,3-dipropyl-8-cyclopentylxanthine (DPCPX

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47

Entry, James A., and William H. Emmingham. "Influence of vegetation on microbial degradation of atrazine and 2,4-dichlorophenoxyacetic acid in riparian soils." Canadian Journal of Soil Science 76, no. 1 (1996): 101–6. http://dx.doi.org/10.4141/cjss96-014.

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Анотація:

Mineralization of atrazine (2 chloro-4 [ethylamino]-6[isopropylamino]-s-triazine) and 2,4-D (2,4-dichlorophenoxyacetic acid) in the organic layer and the top 10 cm of mineral soil was measured with radiometric techniques seasonally in coniferous forests and deciduous forests and grassland riparian soils. Active bacterial biomass and active fungal biomass, total carbon, total nitrogen, and total phosphorus were also measured. In the organic horizon, atrazine mineralization was higher in conifer than in deciduous forests during all seasons. Mineralization of 2,4-D was higher in coniferous than d

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48

Bowman, B. T. "Effect of formulation upon movement and dissipation of 14C-metolachlor and atrazine in field lysimeters." Canadian Journal of Soil Science 73, no. 3 (1993): 309–16. http://dx.doi.org/10.4141/cjss93-033.

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Анотація:

One set of 12 lysimeters (75 cm × 15 cm, packed with 70 cm of Plainfield sand) was treated with 14C-labelled metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methyl ethyl)acetamide] in an emulsifiable concentrate (EC) while a second set was treated with a 25% granular (25G) formulation. Atrazine [2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine] was applied to all lysimeters as an internal reference. Duplicate soil cores from each treatment were removed and frozen at 1, 2, 4, 8, 12, and 21 wk following application. All lysimeters received supplementary water throughout the

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49

H. Alosaimi, Eid. "Synthesis, spectroscopic, biological and structural characterizations for the gold(III), platinum(IV), and Ruthenium(III) ceftriaxone drug complexes." Bulletin of the Chemical Society of Ethiopia 38, no. 4 (2024): 937–48. http://dx.doi.org/10.4314/bcse.v38i4.10.

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Анотація:

Three new metal complexes of ceftriaxone (cef), incorporating platinum(IV), gold(III), and ruthenium(III), were prepared. The complexes were prepared using a 1:2 molar ratio between ceftriaxone sodium salt (Na2cef) to AuCl3, PtCl4, and RuCl3 salts in methanol solvent. The as-synthesized complexes were characterized using microanalytical techniques for C, H, N, and S elements, magnetic and molar conductance measurements, as well as spectroscopic methods including FTIR, 1H NMR, and UV-Vis. The shape, morphology and size calculations have been examined using SEM, TEM, and X-ray diffraction data.

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50

Hunter, Naomi, Reid Tingley, Brad Peori, and Keith Vaughan. "Triazene derivatives of (1,x)-diazacycloalkanes. Part VIII. Synthesis and characterization of a series of 1,4-di[2-aryl-1-diazenyl]-2-methylpiperazines1." Canadian Journal of Chemistry 85, no. 3 (2007): 189–96. http://dx.doi.org/10.1139/v07-013.

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Анотація:

A series of 1,4-di-[2-aryl-1-diazenyl]-2-methylpiperazines (4a–n) have been synthesized by the reaction of 2-methylpiperazine with 2 equiv. of the appropriate diazonium salt. The products have been characterized by IR and NMR spectroscopy, and the molecular composition has been verified by HR-EIMS, with accurate mass measurement of the molecular ion. The presence of a chiral centre at C2 of the piperazine ring in the bistriazene 4 creates a multitude of diastereotopic protons in the methylene groups of the piperazine ring, as evidenced by the complexity of the NMR spectra, which nevertheless c

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