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Journal articles on the topic 'Triazone'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Clapp, J. G. "Foliar Application of Liquid Urea-triazone-based Nitrogen Fertilizers and Crop Safety." HortTechnology 3, no. 4 (1993): 442–44. http://dx.doi.org/10.21273/horttech.3.4.442.

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Urea-triazone-based nitrogen (N) solutions were evaluated for potential leaf injury on agronomic and horticultural crops at 61 commercial grower sites throughout the United States. Poliar spray solutions containing triazone N were used at concentrations ranging from 1.5% to 15.7%. Safe N concentrations for urea-triazone-based N products ranged from 1.5% for crops such as sweet corn, apple, cherry, and pear, and up to 15.7% for nursery root stocks. Urea-triazone-based N solutions were found to be much safer on crop foliage than ammonium-, nitrate-, and/or all urea-based foliar fertilizer produc

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2

Clapp, John G. "Urea-Triazone N Characteristics and Uses." Scientific World JOURNAL 1 (2001): 103–7. http://dx.doi.org/10.1100/tsw.2001.356.

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Urea-triazone nitrogen (N) is a stable solution resulting from a controlled reaction in aqueous medium of urea, formaldehyde, and ammonia which contains at least 25% total N. This N source contains no more than 40%, nor less than 5%, of total N from unreacted urea and not less that 40% from triazone. All other N shall be derived from water-soluble dissolved reaction products of the above reactants. It is a source of slowly available N. The rate of mineralization of urea-triazone is about 66% that of urea after 8 days when incorporated in a Munjor sandy loam. Ammonia volatilization losses of N

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3

Tsuchiya, Takumi, Azusa Kikuchi, Nozomi Oguchi-Fujiyama, Kazuyuki Miyazawa, and Mikio Yagi. "Photoexcited triplet states of UV-B absorbers: ethylhexyl triazone and diethylhexylbutamido triazone." Photochemical & Photobiological Sciences 14, no. 4 (2015): 807–14. http://dx.doi.org/10.1039/c4pp00373j.

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The lowest excited triplet state of a UV-B absorber with extremely high molecular extinction, ethylhexyl triazone, can be assigned to a locally excited<sup>3</sup>ππ* state within a chromophore,p-(N-methylamino)benzoic acid.

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4

Teixeira, Walquíria F., Evandro B. Fagan, Antônio P. M. Machado, Daniel Fortune, and Fernando R. Moreira. "Foliar Application of Nitrogen Affects Metabolism and Productivity of Soybean." Journal of Agricultural Science 13, no. 10 (2021): 31. http://dx.doi.org/10.5539/jas.v13n10p31.

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Soybean is one of the world&rsquo;s most economically important crops and several factors can affect the productivity of this culture. Among these factors is the supply of needed nitrogen, especially in the reproductive stage, as it acts in photosynthetic activity and in grain filling. In view of this, the objective of our work was to evaluate the effect of foliar application of nitrogen in different reproductive stages in soybean culture. Two sources of nitrogen were used: conventional urea and urea-formaldehyde/triazone, both applied in reproductive stages R2, R3, R4, or R5, as well as a

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5

Thorel, Evane, Fanny Clergeaud, Lucie Jaugeon, et al. "Effect of 10 UV Filters on the Brine Shrimp Artemia salina and the Marine Microalga Tetraselmis sp." Toxics 8, no. 2 (2020): 29. http://dx.doi.org/10.3390/toxics8020029.

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The presence of pharmaceutical and personal care product (PPCP) residues in the aquatic environment is an emerging issue due to their uncontrolled release through gray water, and accumulation in the environment that may affect living organisms, ecosystems and public health. The aim of this study is to assess the toxicity of benzophenone-3 (BP-3), bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT), butyl methoxydibenzoylmethane (BM), methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT), 2-ethylhexyl salicylate (ES), diethylaminohydroxybenzoyl hexyl benzoate (DHHB), diethylhexyl butamid

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6

Pathak, Suraj Kumar, Yepeng Xiang, Manli Huang, et al. "Fused tetracyclic tris[1,2,4]triazolo[1,3,5]triazine as a novel rigid electron acceptor for efficient thermally activated delayed fluorescence emitters." RSC Advances 10, no. 26 (2020): 15523–29. http://dx.doi.org/10.1039/d0ra01925a.

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7

Zeng, Qun, Yanyang Qu, Jinshan Li, and Hui Huang. "Theoretical studies on the derivatives of tris([1,2,4]triazolo)[4,3-a:4′,3′-c:4′′,3′′-e][1,3,5]triazine as high energetic compounds." RSC Advances 6, no. 7 (2016): 5419–27. http://dx.doi.org/10.1039/c5ra22524h.

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8

Cassim, Bruno Maia Abdo Rahmen, Antonio Pedro Martins Machado, Daniel Fortune, Fernando Rodrigues Moreira, Éder Júnior De Oliveira Zampar, and Marcelo Augusto Batista. "Effects of Foliar Application of Urea and Urea-Formaldehyde/Triazone on Soybean and Corn Crops." Agronomy 10, no. 10 (2020): 1549. http://dx.doi.org/10.3390/agronomy10101549.

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The objective of the study was to evaluate the effect of foliar application of urea and urea-formaldehyde, triazone-based fertilizers on soybean and corn crops. Four experiments were carried out, two on soybeans, one on first season corn, and the other on second season corn. The experiments were conducted using a randomized block design, with 5 treatments studied: T1—control without application of foliar nitrogen (N); T2—foliar application of conventional urea solution and three treatments with Hexion foliar fertilizers based on urea-formaldehyde and triazone (N-Hexion®), with varying levels o

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9

Sommer, S., S. M. Wilkinson, J. S. C. English, and J. Ferguson. "Photoallergic contact dermatitis from the sunscreen octyl triazone." Contact Dermatitis 46, no. 5 (2002): 304–5. http://dx.doi.org/10.1034/j.1600-0536.2002.460514.x.

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10

Ricci, Andrea, Michelle N. Chrétien, Abdelhamid Sayari, and J. C. Scaiano. "Photophysical Properties of Methyl Triazone Included in MCM-41¶." Photochemistry and Photobiology 81, no. 4 (2005): 949. http://dx.doi.org/10.1562/2005-03-19-rn-466r.1.

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11

Suh, Hyo sun, Seong kwang Lim, Min kook Kim, Min hwa Kim, and Seol hwa Baek. "Risk assessment of ethylhexyl triazone in sunscreen cosmetic products." Toxicology Letters 280 (October 2017): S106. http://dx.doi.org/10.1016/j.toxlet.2017.07.296.

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12

Wiedenfeld, Bob, B. Webb Wallace, and Frank Hons. "Foliar Application of Urea and Triazone Nitrogen to Cotton." Journal of Plant Nutrition 32, no. 2 (2009): 274–86. http://dx.doi.org/10.1080/01904160802608619.

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13

Et, M. HERPOL-BORRHMANS, and M. O. MASSE. "Dosage de l'octyl triazone dans les produits cosmétiques solaires." International Journal of Cosmetic Science 14, no. 3 (1992): 113–19. http://dx.doi.org/10.1111/j.1467-2494.1992.tb00046.x.

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14

Ricci, Andrea, Michelle N. Chrétien, Abdelhamid Sayari, and J. C. Scaiano. "Photophysical Properties of Methyl Triazone Included in MCM-41¶." Photochemistry and Photobiology 81, no. 4 (2007): 949–52. http://dx.doi.org/10.1111/j.1751-1097.2005.tb01468.x.

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15

Wang, Jiazhuang, Jianhua Yang, Xuxin Fu, Guiping Qin, Tiebo Xiao, and Yubo Jiang. "Synthesis of Triazole-Fused Phenanthridines through Pd-Catalyzed Intramolecular Phenyl C–H Activation of 1,5-Diaryl-1,2,3-triazoles." Synlett 30, no. 12 (2019): 1452–56. http://dx.doi.org/10.1055/s-0037-1611859.

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An efficient method for the synthesis of triazole-fused phenanthridines from 1,5-diaryl-1,2,3-triazoles under palladium catalysis has been developed. The reaction proceeds through Pd-catalyzed intramolecular phenyl C–H activation of 1,5-diaryl-1,2,3-triazoles. This method provides a concise and efficient pathway to construct triazolo[1,5-f]phenanthridine derivatives in excellent yields.

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16

Bondada, B. R., J. P. Syvertsen, and L. G. Albrigo. "Urea Nitrogen Uptake by Citrus Leaves." HortScience 36, no. 6 (2001): 1061–65. http://dx.doi.org/10.21273/hortsci.36.6.1061.

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Foliar-applied urea nitrogen (N) has potential to become an important component in fertilizer programs for citrus in Florida and other citrus growing areas as it can reduce nitrate leaching into ground water. We evaluated seasonal absorption characteristics of three urea formulations, Triazone-urea, liquid urea, and spray grade urea by citrus leaves that were from 2 weeks to 6 months old. The effect of leaf age on 15N absorption by N-deficient and N-sufficient leaves, together with urea absorption over an eight-week period were studied using greenhouse-grown and field-grown plants. All foliar

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17

Bernat, Zofia, Anna Szymanowska, Mateusz Kciuk, Katarzyna Kotwica-Mojzych, and Mariusz Mojzych. "Review of the Synthesis and Anticancer Properties of Pyrazolo[4,3-e][1,2,4]triazine Derivatives." Molecules 25, no. 17 (2020): 3948. http://dx.doi.org/10.3390/molecules25173948.

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This review focuses on the cytotoxic effect of new synthetic pyrazolo[4,3-e][1,2,4]triazine derivatives against different tumor cell lines. Some annulated pyrazolotriazines i.e., pyrazolo[4,3-e][1,2,4]triazolo[4,3-b][1,2,4]triazines and pyrazolo[4,3-e]tetrazolo[1,5-b][1,2,4]triazine demonstrated significant broad cytotoxic activity in micromolar range concentration, which could have excellent potential to be new candidate therapeutic agents in cancer chemotherapy.

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18

Ashry, El Sayed H. El, Hamida Abdel Hamid, Ahmed Mousaad, and El Sayed Ramadan. "Regioisomeric Formation of the Linear 1,2,4-Triazolo[4′,3′: 2,3][1,2,4]Triazino[5,6-b]Indole from 3-Hydrazino-1,2,4-Triazino[5,6-b]Indole Derivatives." Journal of Chemical Research 2002, no. 7 (2002): 314–16. http://dx.doi.org/10.3184/030823402103172284.

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Oxidative cyclisation of the ethylidene derivatives of 5-allyl-3-hydrazino-1,2,4-triazino[5,6-b]indole (7) and 8-bromo-3-hydrazino-5H-1,2,4-triazino[5,6-b]indole (8) gave regioselectively the linear isomers, 10-allyl-3-methyl-1,2,4-triazolo[4′,3′:2,3][1,2,4]triazino[5,6-b]indole (15) and 7-bromo-3-methyl-10H-1,2,4-triazolo[4′,3′:2,3][1,2,4]triazino-[5,6-b]indole (16), respectively. They were also obtained by the dehydrative cyclisation of 5 and 6 respectively with acetic acid as well as by the condensation of the N-allyl- (22) or 5-bromo-isatin (23) with 3,4-diamino-5-methyl-4H-1,2,4-triazole

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19

Collins, David J., Timothy C. Hughes, and Wynona M. Johnson. "Dihydro-1,2,4-triazin-6(1H)-ones. III. Oxidation Products of 1-Methyl-3-phenyl- 4,5-dihydro-1,2,4-triazin-6(1H)-one." Australian Journal of Chemistry 52, no. 10 (1999): 971. http://dx.doi.org/10.1071/ch99047.

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1-Methyl-3-phenyl-4,5-dihydro-1,2,4-triazin-6(1H)-one (1) undergoes aerial oxidation to give a mixture of 1- methyl-3-phenyl-1,2,4-triazin-6(1H)-one (2) and 1-methyl-3-phenyl-1,4-dihydro-1,2,4-triazine-5,6-dione (3). The dehydro derivative (2) was cleanly prepared by the oxidation of (1) with 2,3-dichloro-5,6-dicyano-1,4- benzoquinone (ddq). The dehydro derivative (2) underwent a surprising rearrangement to the triazole (12) upon oxidation with OxoneR. Several attempts at unambiguous synthesis of the α-dicarbonyl derivative (3) were unsuccessful; it was obtained, together with the 1,4-dimethyl

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20

Karpun, Yevhen, and Nataliia Polishchuk. "Synthesis and antimicrobial activity of s-substituted derivatives of 1,2,4-triazol-3-thiol." ScienceRise: Pharmaceutical Science, no. 3(31) (June 30, 2021): 64–69. http://dx.doi.org/10.15587/2519-4852.2021.235976.

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The aim of the work. 1,2,4-triazole derivatives possess a wide range of pharmacological activity, so they are used for the development of drugs and active pharmaceutical ingredients. Due to the reactivity of 1,2,4-triazoles there are many options for their further structural modification on different reaction centers. Therefore, the aim of the work was to obtain new S-substituted derivatives of 1,2,4-triazole-3-thiols, study physicochemical parameters of the substances synthesized, evaluate the antimicrobial activity of new S-derivatives of the 4-R1-5-((3-(pyridin-4-yl)-1H-1,2,4-triazol-5-yl)t

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21

Baker, Lewis A., Sarah L. Clark, Scott Habershon, and Vasilios G. Stavros. "Ultrafast Transient Absorption Spectroscopy of the Sunscreen Constituent Ethylhexyl Triazone." Journal of Physical Chemistry Letters 8, no. 10 (2017): 2113–18. http://dx.doi.org/10.1021/acs.jpclett.7b00633.

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22

Clapp, J. G., and T. M. Parham. "Properties and uses of liquid urea-triazone-based nitrogen fertilizers." Fertilizer Research 28, no. 2 (1991): 229–32. http://dx.doi.org/10.1007/bf01049755.

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23

Egorov, Ilya N., Igor S. Kovalev, Vladimir L. Rusinov, and Oleg N. Chupakhin. "Cyclotrimerization of 3-R-1,2,4-Triazin-5(4H)-ones with Cyclic Ketones." Zeitschrift für Naturforschung B 65, no. 11 (2010): 1359–62. http://dx.doi.org/10.1515/znb-2010-1111.

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New heterocyclic tetracyclic systems were synthesized. Interaction between 3-R-1,2,4-triazin- 5(4H)-ones and cyclic ketones under acidic conditions leads to the formation of zwitterion derivatives of 5,6,7,8,9,10,11,12-octahydro-[1,2,4]triazino[1,6- ƒ ]phenanthridine and 1,2,3,6,7,8-hexahydro-bicyclopenta[ b,d]pyrido[1,2- ƒ ][1,2,4]triazine.

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24

Joucla, Lionel, Emmanuel Lacôte, Aurore Glowacki, Victorien Jeux, Gwénaël Gasnier, and Guy Jacob. "C- vs. N-Oxidations of Benzyltriazanes: Selective Access to Triazones, Azimines, and Triazenes." Synlett 29, no. 05 (2018): 566–70. http://dx.doi.org/10.1055/s-0036-1591865.

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The oxidation of several benzyltriazanes has been studied. Routes to the selective formation of triazenes, azimines, and triazones via C- or N-oxidation (and rearrangement) were devised. The rich reactivity of triazanes shows that trinitrogen chains are interesting functions, whose reactivity has been overlooked despite their interest as 3-N building blocks.

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25

Lim, Seong-Kwang, Min-kook Kim, Hyo-Sun Suh, Min-Hwa Kim, Seol-Hwa Baek, and Byung-Mu Lee. "Human risk assessment of diethylhexyl butamido triazone in sunscreen cosmetic products." Toxicology Letters 280 (October 2017): S105. http://dx.doi.org/10.1016/j.toxlet.2017.07.293.

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26

Rodríguez, Sylvia J., Diana M. Cristancho, Paula C. Neita, Edgar F. Vargas, and Fleming Martínez. "Solution Thermodynamics of Ethylhexyl Triazone in Some Ethanol + Ethyl Acetate Mixtures." Journal of Solution Chemistry 39, no. 8 (2010): 1122–33. http://dx.doi.org/10.1007/s10953-010-9575-0.

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27

Farrán, M. Ángeles, M. Ángels Bonet, Rosa M. Claramunt, M. Carmen Torralba, Ibon Alkorta, and José Elguero. "The structures of 1,4-diaryl-5-trifluoromethyl-1H-1,2,3-triazoles related to J147, a drug for treating Alzheimer's disease." Acta Crystallographica Section C Structural Chemistry 74, no. 4 (2018): 513–22. http://dx.doi.org/10.1107/s2053229618004394.

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J147 [N-(2,4-dimethylphenyl)-2,2,2-trifluoro-N′-(3-methoxybenzylidene)acetohydrazide] has recently been reported as a promising new drug for the treatment of Alzheimer's disease. The X-ray structures of seven new 1,4-diaryl-5-trifluoromethyl-1H-1,2,3-triazoles, namely 1-(3,4-dimethylphenyl)-4-phenyl-5-trifluoromethyl-1H-1,2,3-triazole (C17H14F3N3, 1), 1-(3,4-dimethylphenyl)-4-(3-methoxyphenyl)-5-trifluoromethyl-1H-1,2,3-triazole (C18H16F3N3O, 2), 1-(3,4-dimethylphenyl)-4-(4-methoxyphenyl)-5-trifluoromethyl-1H-1,2,3-triazole (C18H16F3N3O, 3), 1-(2,4-dimethylphenyl)-4-(4-methoxyphenyl)-5-trifluo

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28

Jansa, Petr, Petr Špaček, Ivan Votruba, et al. "Efficient one-pot synthesis of polysubstituted 6-[(1H-1,2,3-triazol-1-yl)methyl]uracils through the “click” protocol." Collection of Czechoslovak Chemical Communications 76, no. 9 (2011): 1121–31. http://dx.doi.org/10.1135/cccc2011074.

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The preparation of several triazolo acyclic nucleosides and triazolo acyclic nucleoside phosphonates is described. The synthetic methodology has been developed as an efficient one-pot Cu(I)-catalyzed azide alkyne Huisgen “click” cycloaddition. A novel Cu(I)-catalyzed decarboxylation reaction of 1-substituted 1H-1,2,3-triazole-4-carboxylic acids at room temperature was observed and used for the preparation of 1-substituted 1H-1,2,3-triazoles. As congeners of TPI (Taiho pharmaceutical inhibitor), the prepared compounds were screened as potential inhibitors of human thymidine phosphorylase, but n

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29

Bakhotmah, Dina, and Fatimah Alotaibi. "Synthesis and pharmacological evaluation of new fluorine substituted pyrimido[1,2-b][1,2,4]triazines and [1,3,5]-triazino-[1,2-b][1,2,4]triazines derived as CDK2 potential inhibitors." European Journal of Chemistry 11, no. 3 (2020): 198–205. http://dx.doi.org/10.5155/eurjchem.11.3.198-205.1988.

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New fluorine-substituted polyfunctional pyrimido-[1,2-b]-[1,2,4]triazines and [1,3,5]-triazino[1,2-b]-[1,2,4]triazines were synthesized via the reaction between 3-amino-6-(2-aminophenyl)-1,2,4-triazin-5(2H)-one with polyfunctional oxygen/sulfur/nitrogen reagents under different conditions. Structures of the target compounds were deduced by elemental analysis and spectral measurements (IR, 1H/13C NMR, and mass spectra). According to the obtained inhibitor assay results, the inhibition activity of the new fluorine-substituted 1,2,4-triazines toward CDK2 decreased in the order of compounds 3 >

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30

Rajeswar Rao, Vedula, Vedula M. Sharma, and Tadepally V. Padmanabha Rao. "Synthesis of Some New Type of Naphthothiazole Triazoles from Lawsone." Collection of Czechoslovak Chemical Communications 58, no. 5 (1993): 1191–94. http://dx.doi.org/10.1135/cccc19931191.

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A series of 3-aryl naphto[2',3':4,5]thiazolo[3,2-b-1,2,4-triazolo-5,10-diones (V) have been prepared by the condensation of bromo lawsone (I) with 5-mercapto-3-substituted 1,2,4-triazole (II) followed by cyclization of the resulting uncyclized products (IV) with alkohol and sulfuric acid. The products are identical with the condensation products of 2,3-dichloro naphthoquinone (III) with 5-mercapto-3-substituted 1,2,4-triazoles in the presence of anhydrous alcohol containing fused sodium acetate.

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31

Ducruet, Jean-Marc, Sophie Creuzet, and Josiane Viénot. "Kinetics of Action of Different Photosystem II Herbicides on Thylakoids." Zeitschrift für Naturforschung C 45, no. 5 (1990): 348–52. http://dx.doi.org/10.1515/znc-1990-0507.

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The kinctics of inhibition of photosystem II electron transfer by different diuron-like herbicides (ureas, triazines, triazinoncs, biscarbamates. uraciles) were studied, mainly by chlorophyll fluorescence measurements. Uracil derivatives and cyanazine, a particular triazinc. were the slowest acting compounds. The half-times of action were strongly temperature-dependent and were of the order of tens of seconds at 5 °C for urea or triazine inhibitors. The role of different limiting steps in the binding process is discussed.

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32

Heitholt, James J. "Effects of foliar urea‐ and triazone‐nitrogen, with and without boron, on cotton." Journal of Plant Nutrition 17, no. 1 (1994): 57–70. http://dx.doi.org/10.1080/01904169409364709.

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33

Slivka, Mikhailo, Nataliya Korol, Ivan Rusyn, and Vasyl Lendel. "Synthesis of [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium and [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts via regioselective electrophilic cyclization of 3-[(2-alken-1-yl)sulfanyl]-4H-1,2,4-triazoles." Heterocyclic Communications 21, no. 6 (2015): 397–401. http://dx.doi.org/10.1515/hc-2015-0158.

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AbstractA convenient procedure for the regioselective preparation of [1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium 10 and [1,2,4]triazolo[5,1-b][1,3]thiazin-4-ium salts 9 via regioselective electrophilic cyclization of 3-[(2-alken-1-yl)sulfanyl]-4H-1,2,4-triazoles 3 is reported. Direction of electrophilic heterocyclization strongly depends on nature of the alkenyl substitutent.

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34

Sobanska, Anna W., and Jaroslaw Pyzowski. "Quantification of Sunscreen Ethylhexyl Triazone in Topical Skin-Care Products by Normal-Phase TLC/Densitometry." Scientific World Journal 2012 (2012): 1–6. http://dx.doi.org/10.1100/2012/807516.

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Ethylhexyl triazone (ET) was separated from other sunscreens such as avobenzone, octocrylene, octyl methoxycinnamate, and diethylamino hydroxybenzoyl hexyl benzoate and from parabens by normal-phase HPTLC on silica gel 60 as stationary phase. Two mobile phases were particularly effective: (A) cyclohexane-diethyl ether 1 : 1 (v/v) and (B) cyclohexane-diethyl ether-acetone 15 : 1 : 2 (v/v/v) since apart from ET analysis they facilitated separation and quantification of other sunscreens present in the formulations. Densitometric scanning was performed at 300 nm. Calibration curves for ET were non

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35

Pandey, Vinod Kumar, Zehra Tusi, Sumerah Tusi, and Madhawanand Joshi. "Synthesis and Biological Evaluation of Some Novel 5-[(3-Aralkyl Amido/Imidoalkyl) Phenyl]-1,2,4-Triazolo[3,4-b]-1,3,4-Thiadiazines as Antiviral Agents." ISRN Organic Chemistry 2012 (September 11, 2012): 1–7. http://dx.doi.org/10.5402/2012/760517.

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A series of novel 4-amino-5-mercapto-3-[(3-aralkyl amido/imidoalkyl) phenyl]-1,2,4-triazoles (5a-d) were obtained by treating m-(aralkyl amido/imidoalkyl) benzoic acid hydrazides (3a-d) with carbon disulphide in alcoholic KOH and hydrazine hydrate, respectively. These triazole derivatives were employed in the synthesis of 5-[(3′-aralkyl amido/imidoalkyl) phenyl]-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazines (6a-d). The newly synthesized compounds were evaluated for their antiviral activity against two animal viruses, namely, Japanese encephalitis virus (JEV) strain P20778 and herpes simplex virus-1

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36

Al-Romaizan, Abeer N. "Behavior of 3-hydrazino-6-aryl-1,2,4-triazin-5-one as a strong nucleophile towards active electrophilic compounds and their antibacterial evaluation." Mediterranean Journal of Chemistry 9, no. 3 (2019): 279–57. http://dx.doi.org/10.13171/mjc93191014920aar.

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The behavior of 3-hydrazino-6-aryl-1,2,4-triazin-5-one towards the active electrophilic compounds in polar and/ or non-polar solvents and various times and temperatures, has been studied. N-[2-(3-(3/5-(4-Nitrophenyl)-5/3-thioxo-1H-1,2,4-triazol-1-yl)-5-oxo-1,2,4-triazin-6-yl)phenyl]pivalamides were obtained from the reaction of N-(2-(3-hydrazineyl-5-oxo-1,2,4-triazin-6-yl)phenyl)-pivalamide with 4-nitrobenzoyl isothiocyanate in THF and/ or EtOH-piperidine respectively. Also, N-(2-(3-hydrazineyl-5-oxo-1,2,4-triazin-6-yl)phenyl)-pivalamide was shown a strong nucleophilic behavior by reaction wit

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Rathmann, Stephanie M., Nancy Janzen, and John F. Valliant. "Synthesis, radiolabelling, and biodistribution studies of triazole derivatives for targeting melanoma." Canadian Journal of Chemistry 94, no. 9 (2016): 773–80. http://dx.doi.org/10.1139/cjc-2016-0239.

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Molecular probes that target specific markers expressed in solid tumours are in demand for cancer imaging and radionuclide therapy applications. The synthesis, characterization, and in vivo evaluation of radioiodinated triazoles designed as probes to target melanoma are described here. Compounds were prepared using a thermal click reaction between ethynylstannane and methyl 2-azidoacetate, resulting in preferential formation of the corresponding 1,4-tin triazole. The primary amine of various targeting vectors was then coupled to the resulting tin triazole methyl ester. These precursors were la

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Gotsulya, A. S., A. I. Panasenko, E. G. Knysh, and A. O. Pryimenko. "UV-spectrophotometric study of the 7-((3-thio-4-R-1,2,4-triazole-3-yl)methyl)-theophyllines." Farmatsevtychnyi zhurnal, no. 4 (September 4, 2018): 65–70. http://dx.doi.org/10.32352/0367-3057.4.15.03.

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Chemistry of the 1,2,4-triazole derivatives recently attracts the attention of many scientists, mainly due to the presence of the number of the valuable pharmacological properties. In modern medical practice, there are many examples of successful heterocyclic systems derivatives usage. First of all, it is a group of drugs with antifungal activity (fluconazole, itraconazole, voriconazole, pozakonazol), antidepressant activity (alprazolam, triazolam), anticancer activity (anastrozole, letrozole). But despite the great practical importance of works in this area, the structure of 1,2,4-triazoles-3

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Bortolot, Carolina S., Luana da S.M. Forezi, Roberta K. F. Marra, et al. "Design, Synthesis and Biological Evaluation of 1H-1,2,3-Triazole-Linked-1H-Dibenzo[b,h]xanthenes as Inductors of ROS-Mediated Apoptosis in the Breast Cancer Cell Line MCF-7." Medicinal Chemistry 15, no. 2 (2019): 119–29. http://dx.doi.org/10.2174/1573406414666180524071409.

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Background:Low molecular weight 1,2,3-triazoles and naphthoquinones are endowed with various types of biological activity, such as against cancer, HIV and bacteria. However, in some cases, the conjugation of these two nuclei considerably increases their biological activities.Objective:In this work, we decided to study the synthesis and screening of bis-naphthoquinones and xanthenes tethered to 1,2,3-triazoles against cancer cell lines, specifically the human breast cancer cell line MCF-7.Results:Starting from lawsone and aryl-1H-1,2,3-triazole-4-carbaldehydes (10a-h) several new 7- (1-aryl-1H-

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Chen, Yan Ling, and Qiang Xia. "Preparation and Characterization of Broad-Spectrum Sunscreens Loaded Nanostructured Lipid Carrier." Advanced Materials Research 669 (March 2013): 67–71. http://dx.doi.org/10.4028/www.scientific.net/amr.669.67.

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A comprehensive photoprotective formulation was developed to enhance photoprotection ,compared to a conventional nanoemulsion ,having the concentration of two new molecular sunscreens, namely Diethylamino hydyoxybenzoyl hexyl benzoate(Uvinul ® A Plus) and Ethylhexyl triazone(Uvinul® T 150). In the present paper, the sunscreen mixture was incorporated into nanostructured lipid carriers (NLCs). After the production by hot high pressure homogenization, the NLC were analyzed in terms of particle size, physical state, particle shape, ultraviolet absorbance and stability. The particle size for all N

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Joshi, K. A., J. M. Dhalani, H. B. Bhatt, and K. M. Kapadiya. "Synthesis of some new 6-aryl-3-(4-isopropylphenyl)[1,2,4]triazolo[3,4-b][1,3,4] thiadiazoles and its anti-microbial study." Current Chemistry Letters 10, no. 4 (2021): 479–88. http://dx.doi.org/10.5267/j.ccl.2021.4.003.

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New series of fused 1,2,4-triazoles, i.e., 3-(4-isopropylphenyl)-6-substituted phenyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazoles (5a-5j) have been synthesized via a four-step procedure and using eco-friendly reaction condition at some steps of the synthesis. It was adopted by the formation of hydrazide of methyl 4-isopropylbenzoate (1) followed by reaction with CS2 in basic media to afford potassium salt, which on cyclized to our essential step, 4-amino-5-(4-isopropylphenyl)-4H-1,2,4-triazole-3-thiol (4). The desired adducts (5a-5j) were formed by (4) on reaction with various aromatic acids in

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Canseco-González, Daniel, José Luis Rodríguez de la O, and José Enrique Herbert-Pucheta. "Combined XRD-paramagnetic 13C NMR spectroscopy of 1,2,3-triazoles for revealing copper traces in a Huisgen click-chemistry cycloaddition. A model case." Heterocyclic Communications 25, no. 1 (2019): 98–106. http://dx.doi.org/10.1515/hc-2019-0018.

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AbstractCopper-catalyzed Alkyne-Azide Cycloaddition (CuAAC) click chemistry robustness has been demonstrated over recent years to produce 1,2,3-triazoles with excellent yields at mild conditions with simple purification methods. However, the consequences of having copper paramagnetic traces in final products, which complicate spectroscopic assignments and can produce inaccurate conclusions, has been scarcely discussed. Herein we present a strategy that combines X-Ray Diffraction (XRD) with 13C- paramagnetic Nuclear Magnetic Resonance spectroscopy, in order to demonstrate the presence of parama

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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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Jain, Sonika, Pankaj Kumar Jain, Shalu Sain, Dharma Kishore, and Jaya Dwivedi. "Anticancer s-Triazine Derivatives: A Synthetic Attribute." Mini-Reviews in Organic Chemistry 17, no. 8 (2020): 904–21. http://dx.doi.org/10.2174/1570193x17666200131111851.

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1, 3, 5-Triazine (s-Triazine) is a versatile nucleus to design and develop potent bioactive molecules for drug discovery, particularly in cancer therapy. The aim of this review is to present the most recent trends in the field of synthetic strategies made for functionalized triazine derivatives active against cell proliferation. This review article covers the synthesis of aryl methylamino, morpholino, triamino substituted triazines, antimitotic agents coupled triazines and many more. Many 1,3,5- triazine derivatives, both hetero-fused and uncondensed, have shown remarkable antitumor activities

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Widders, Irvin E. "Absorption and translocation of foliar applied triazone‐n as compared to other nitrogen sources in tomato." Journal of Plant Nutrition 14, no. 10 (1991): 1035–45. http://dx.doi.org/10.1080/01904169109364263.

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Scalia, Santo, Sarah Battaglioli, and Anna Bianchi. "In vivo Human Skin Penetration of the UV Filter Ethylhexyl Triazone: Effect of Lipid Microparticle Encapsulation." Skin Pharmacology and Physiology 32, no. 1 (2018): 22–31. http://dx.doi.org/10.1159/000493761.

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Lee, Jae Wook, Hyung-Ho Ha, Marc Vendrell, Jacqueline T. Bork, and Young-Tae Chang. "Combinatorial Solid-Phase Synthesis of 6-Aryl-1,3,5-triazines via Suzuki Coupling." Australian Journal of Chemistry 64, no. 5 (2011): 540. http://dx.doi.org/10.1071/ch11034.

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A synthetic methodology to prepare collections of trisubstituted aryl 1,3,5-triazines with broad structural diversity via Suzuki coupling has been developed. We first optimized the combinatorial derivatization of the triazine core using Suzuki cross-coupling. Second, in order to further expand the methodology for the preparation of negatively charged triazines, we adapted this approach to polymer-supported amino acids and prepared aryl triazines with different charge distribution. With a collection of 160 aryl triazine derivatives in good purities and without any purification step, we proved t

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Ravikumar, Krishnan, Balasubramanian Sridhar, Jagadeesh Babu Nanubolu, Venkatasubramanian Hariharakrishnan, and Awadesh Narain Singh. "Structures of benzoxazine-fused triazoles as potential diuretic agents." Acta Crystallographica Section C Crystal Structure Communications 68, no. 8 (2012): o302—o307. http://dx.doi.org/10.1107/s0108270112029800.

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6,8-Dinitro-2,4-dihydro-1H-benzo[b][1,2,4]triazolo[4,3-d][1,4]oxazin-1-one, C9H5N5O6, (I), a potential diuretic, and its acetylacetone derivative (E)-2-(2-hydroxy-4-oxopent-2-en-3-yl)-6,8-dinitro-2,4-dihydro-1H-benzo[b][1,2,4]triazolo[4,3-d][1,4]oxazin-1-one, C14H11N5O8, (II), both crystallize from methanol but in centrosymmetric and noncentrosymmetric space groups, respectively. To the best of our knowledge, this is the first report of crystal structures of benzoxazine–triazole fused systems. The acetylacetone group in (II) exists as the keto–enol tautomer and is oriented perpendicular to the

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Kantlehner, Willi, Kai Edelmann, and Wolfgang Frey. "Orthoamide und Iminiumsalze, LXXXII [1]. Die Spaltung von Alkincarbonsäure-orthoamiden mit Trimethylsilylazid / Orthoamides and Iminium Salts LXXXII [1]. The Cleavage of Orthoamides of Alkynecarboxylic Acids by Trimethylsilyl Azide." Zeitschrift für Naturforschung B 67, no. 9 (2012): 913–20. http://dx.doi.org/10.5560/znb.2012-0124.

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The cleavage of orthoamides of alkynecarboxylic acids 5 with trimethylsilyl azide affords 4-[bis(dimethylamino)methylene]-4H-1,2,3-triazoles 9. By treatment of the bis-orthoamide of acetylenedicarboxylic acid 1 with trimethylsilyl azide and benzoyl azide, respectively, the 5- [bis(dimethylamino)methylene]-5H-1,2,3-triazole carboxamidinium salt 12a is accessible. Iminium salts 10 and 14 can be prepared by methylation of the triazoles 9 and 12a in 2-position of the triazole ring. The crystal structure of 5H-1,2,3-triazole-4-carboxamidinium tetraphenylborate 12b is reported

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Tang, Yongxing, Ziwei An, Ajay Kumar Chinnam, Richard J. Staples, and Jean'ne M. Shreeve. "Very thermostable energetic materials based on a fused-triazole: 3,6-diamino-1H-[1,2,4]triazolo[4,3-b][1,2,4]triazole." New Journal of Chemistry 45, no. 1 (2021): 85–91. http://dx.doi.org/10.1039/d0nj05152g.

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