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Journal articles on the topic 'Butyl compound'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Naktode, Kishor, Sayak Das Gupta, Abhinanda Kundu, et al. "Functionalisation of Imidazolin-2-imine to Corresponding Phosphinamine, Chalcogenide (O, S, Se, Te), and Borane Compounds." Australian Journal of Chemistry 68, no. 1 (2015): 127. http://dx.doi.org/10.1071/ch14078.

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1,3-Di-tert-butyl-imidazolin-2-ylidine-1,1-diphenylphosphinamine (2) was prepared from 1,3-di-tert-butyl-imidazolin-2-imine (1) and chlorodiphenylphosphine. Compound 2 was treated further with elemental sulfur, selenium, and tellurium to afford the corresponding chalcogenide derivatives, 1,3-di-tert-butyl-imidazolin-2-ylidine-P,P-diphenyl-phosphinothioicamide (4), 1,3-di-tert-butyl-imidazolin-2-ylidine-P,P-diphenyl-phosphinoselenoicamide (5), and 1,3-di-tert-butyl-imidazolin-2-ylidine-P,P-diphenyl-phosphinotelluroicamide (6) in good yield. 1,3-Di-tert-butyl-imidazolin-2-ylidine-P,P-diphenylpho

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2

IŞIK, Ayşen, Kezban UÇAR ÇİFÇİ, Hayrani Eren BOSTANCI, Yusuf TUTAR, Ahmet KOÇAK, and Mustafa YILMAZ. "Synthesis and Characterization of Novel Calix[4]arene Schiff Base Derivatives and Cytotoxicity Effect Evaluation on Cancer Cell Lines." Cumhuriyet Science Journal 43, no. 4 (2022): 629–33. http://dx.doi.org/10.17776/csj.1173347.

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In this study, four stages were used to create brand-new p-tert-butyl-calix [4] arene Schiff base derivatives. First, p-tert-butyl-phenol and formaldehyde are reacted to create p-tert-butyl-calix [4] arene (1). In the following step, methyl bromoacetate and p-ter-butyl-calix [4] arene (1) were combined with acetone and reflux to create the p-tert-butyl-calix [4] arene diester complex (2). The third step involves reacting the diester compound (2) and hydrazine hydrate to create the p-tert-butyl-calix [4] arene hydrazinamide molecule (3). In the final stage, calix [4] arene Schiff base derivativ

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3

Sedláková, Zuzana, Hélène Sauton, Vladimír Hynek, and Ivona Malijevská. "Solid-Liquid Equilibrium in the Systems with an Ionic Liquid." Collection of Czechoslovak Chemical Communications 73, no. 5 (2008): 657–64. http://dx.doi.org/10.1135/cccc20080657.

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An active interest in ionic liquids has grown over the last years. This relatively new class of solvents appears to be potentially useful as a "greener" alternative to volatile organic compounds. This work was aimed at studying the effect of addition of the ionic liquid 1-butyl-3-methylimidazolium chloride to two systems (acetic acid (1)-formamide (2) and propionic acid (1)-formamide (2)) on formation of a compound in the solid phase. In previous work, the presence of a solid compound with a formula (CH3COOH)2·HCONH2 was investigated in the binary system acetic acid (1)-formamide (2) and a sta

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4

Marcelia, Maurin, Ade Arsianti, Jilly Octaria Tagore Chan, et al. "In Vitro Cytotoxicity of the Synthesized Gallic Acid Derivatives (N-Alkyl Gallamide) Against Breast MCF-7 Cancer Cells." Oriental Journal of Chemistry 34, no. 5 (2018): 2268–72. http://dx.doi.org/10.13005/ojc/340506.

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Gallic acid is a phenolic compound distributed in plants and fruits which has been reported to have cytotoxic effect on MCF-7 breast cancer cell line. In this research, we investigated in vitro cytotoxic effect of six synthesized compounds of gallic acid derivatives (N-alkyl gallamide), namely N-methyl gallamide (2); N-ethyl gallamide (3); N-butyl gallamide (4); N-sec-butyl gallamide (5); N-tert-butyl gallamide (6) and N-hexyl gallamide (7) against breast MCF-7 cells by MTT assay. Linear regression analysis is utilized to analyze data to regenerate IC50 value. The results will be compared with

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5

Krossing, Ingo, Heinrich Nöth, and Siegfried Staude. "Dimeric Di(tert-butyl)haloalanes and a Monomeric Di(tert-butyl)phosphino-di(tert-butyl)alane." Zeitschrift für Naturforschung B 63, no. 9 (2008): 1045–51. http://dx.doi.org/10.1515/znb-2008-0905.

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The di(tert-butyl)aluminum halides, tBu2AlX (X = Br, I) have been prepared in yields ranging from 55 to 64% from AlX3 and LitBu in a 1 : 2 molar ratio in pentane. In the crystal these pyrophoric compounds are dimeric featuring Al-X-Al bridges. The reaction of AlCl3 with LitBu in diethyl ether produced a volatile solvate of composition tBu3Al-Cl-AltBu2(OEt2). Reaction of this species with AlCl3 at 120 ◦C yielded a separable mixture of tBu2AlCl and tBu2AlCl(OEt2). tBu2AlCl and tBu2GaCl react with tBu2PLi to produce the monomeric compounds tBu2E-PtBu2 (E = Al, Ga). The aluminum compound decompose

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6

Macías, Mario A., Juan-Carlos Castillo, and Jaime Portilla. "A series of (E)-5-(arylideneamino)-1-tert-butyl-1H-pyrrole-3-carbonitriles and their reduction products to secondary amines: syntheses and X-ray structural studies." Acta Crystallographica Section C Structural Chemistry 74, no. 1 (2018): 82–93. http://dx.doi.org/10.1107/s2053229617017260.

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An efficent access to a series of N-(pyrrol-2-yl)amines, namely (E)-1-tert-butyl-5-[(4-chlorobenzylidene)amino]-1H-pyrrole-3-carbonitrile, C16H16ClN3, (7a), (E)-1-tert-butyl-5-[(2,4-dichlorobenzylidene)amino]-1H-pyrrole-3-carbonitrile, C16H15Cl2N3, (7b), (E)-1-tert-butyl-5-[(pyridin-4-ylmethylene)amino]-1H-pyrrole-3-carbonitrile, C15H16N4, (7c), 1-tert-butyl-5-[(4-chlorobenzyl)amino]-1H-pyrrole-3-carbonitrile, C16H18ClN3, (8a), and 1-tert-butyl-5-[(2,4-dichlorobenzyl)amino]-1H-pyrrole-3-carbonitrile, C16H17Cl2N3, (8b), by a two-step synthesis sequence (solvent-free condensation and reduction)

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7

Yu, Liangli, Denys J. Charles, Jules Janick, and James E. Simon. "Aroma Volatiles of `GoldRush' and `Golden Delicious' Apples." HortScience 31, no. 4 (1996): 639a—639. http://dx.doi.org/10.21273/hortsci.31.4.639a.

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The aroma volatiles of ripe fresh `GoldRush' and `Golden Delicious' apples (Malus ×domestica Borkh) were examined using dynamic headspace to capture the volatiles and gas chromatography (GC)–GC–mass spectroscopy (MS) analysis for compound identification. A total of 21 aroma volatiles were identified, with 16 being common to both cultivars: toluene, butyl acetate, hexyl formate, 2-methylbutyl acetate, xylene, butyl propionate, pentyl acetate, s-butyl butanoate, hexyl acetate, iso-butyl 2-methylbutanoate, hexyl propionate, hexyl butanoate, hexyl 2-methylbutanoate, hexyl hexanoate, a-farnesene, a

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8

Tang, Guo, Binzhou Lin, Guozhang Lu та ін. "Metal-Free Synthesis of α-Aminophosphonates from Tertiary Amines and P(O)H Compounds via a Cross-Dehydrogenative Coupling Reaction". Synlett 29, № 20 (2018): 2697–700. http://dx.doi.org/10.1055/s-0037-1610306.

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The various α-aminophosphonates have been prepared from tertiary aromatic and aliphatic amines with P(O)H compounds via a tert-butyl hydroperoxide mediated cross-dehydrogenative coupling reaction, eliminating the need for transition-metal catalysts. The oxidation of tertiary amine by tert-butyl hydroperoxide generates an iminium cation intermediate. A further addition of P(O)H compound to iminium cation gives the desired product.

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9

Marszaukowski, Flavia, Karen Wohnrath, and René T. Boeré. "Bulky 2,6-disubstituted aryl siloxanes and a disilanamine." Acta Crystallographica Section E Crystallographic Communications 76, no. 3 (2020): 318–23. http://dx.doi.org/10.1107/s2056989020001413.

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The crystal structures of 5-bromo-1,3-di-tert-butyl-2-[(trimethylsilyl)oxy]benzene, C17H29BrOSi, (I), 1,3-di-tert-butyl-2-[(trimethylsilyl)oxy]benzene, C17H30OSi, (II), and N-(2,6-diisopropylphenyl)-1,1,1-trimethyl-N-(trimethylsilyl)silanamine, C18H35NSi2, (III), are reported. Compound (I) crystallizes in space group P21/c with Z′ = 1, (II) in Pnma with Z′ = 0.5 and (III) in Cmcm with Z′ = 0.25. Consequently, the molecules of (II) are constrained by m and those of (III) by m2m site symmetries. Despite this, both (I) and (II) are distorted towards mild boat conformations, as is typical of 2,6-d

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10

Siswandono, S. "Molecular docking of antioxidant activity of bougainvillea spectabilis wild bractea ethanol fraction with aryl hydro carbon inhibitors and vitamin C comparator." Journal of Medical pharmaceutical and allied sciences 12, no. 6 (2023): 6274–80. http://dx.doi.org/10.55522/jmpas.v12i6.5946.

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Antioxidant compounds are increasingly being used in the health sector. In the health sector, antioxidant compounds also have a very important role. Antioxidant compounds have been scientifically proven to reduce the risk of chronic diseases, such as cancer, coronary heart disease, disorders such as redness, hyperpigmentation, wrinkles and premature aging. Antioxidant compound found in many plants, both bracteas, leaves and fruit, one of which is bracteas Bougainvillea spectabilis Willd. The ethanol fraction of bracteas Bougainvillea spectabillis Willd include: butil hydroxytoluene;ρ-Trimethyl

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11

Söylemez, Nazlı, Ebru Yabaş, Serap Şahin Bölükbaşı, and Mustafa Sülü. "Antioxidant activities of the new tetrasubstituted metal-free, Zn(II) and Co(II) monophthalocyanines." Journal of Porphyrins and Phthalocyanines 22, no. 01n03 (2018): 233–42. http://dx.doi.org/10.1142/s1088424618500190.

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4-[(4′-(Tert-butyl)phenoxy)phenoxy]phthalonitrile 1 has been prepared by the reaction of 4-(4-nitrophenoxy)phthalonitrile with 4-tertiarylbutylphenole. 4-((4′-tert-butyl)phenoxy)phenoxy tetrasubstituted metal-free 2, zinc(II) 3 and cobalt(II) 4 phthalocyanines have been prepared by tetramerization of compound 1. The synthesized phthalocyanines showed high solubility in common organic solvents such as CHCl[Formula: see text]. All compounds were characterized by elemental analysis and [Formula: see text]H-NMR, [Formula: see text]C-NMR, UV-vis, IR spectra. Aggregation behaviors of these compounds

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12

Aitken, R. Alan, David B. Cordes, Aidan P. McKay, and Dheirya K. Sonecha. "tert-Butyl N-Hydroxycarbamate (N-Boc-Hydroxylamine)." Molbank 2023, no. 3 (2023): M1728. http://dx.doi.org/10.3390/m1728.

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The X-ray structure of the title compound has been determined for the first time. This features ribbons formed by two parallel chains of molecules joined by C=O···H–N hydrogen bonding, which are then cross-linked by C=O···H–O hydrogen bonds. The structure is compared to those of closely related compounds.

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13

Setiyoningrum, Fitri, Deddy Triyono Nugroho Adi, Gunawan Priadi, et al. "Biotransformation of <i>n</i>-butanol to Fruity-Like Bio-Flavour by Indonesian Lactic Acid Bacteria." Journal of Tropical Biodiversity and Biotechnology 9, no. 4 (2024): 93537. https://doi.org/10.22146/jtbb.93537.

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Microbial production of aroma compounds is a promising alternative to extracting plants or chemical synthesis. In our research, the Indonesian lactic acid bacteria (LAB) have been utilised as producing fruity-like bio flavour by biotransformation approach using n-butanol as a precursor. The aims of our research are to identify LAB- secondary metabolites categorised fruity-like bio flavour and investigate the changes of glucose, mannitol, xylose, lactic acid and acetic acid in growth medium after fermentation. Our result research showed that n-butanol could be transformed to several fruity like

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14

Bogo, Danielle, Maria de Fatima Cepa Matos, Neli Kika Honda, et al. "In vitro Antitumour Activity of Orsellinates." Zeitschrift für Naturforschung C 65, no. 1-2 (2010): 43–48. http://dx.doi.org/10.1515/znc-2010-1-208.

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Lichen phenolic compounds exhibit antioxidant, antimicrobial, antiproliferative, and cytotoxic activities. The purpose of this study was to evaluate the anticancer activity of lecanoric acid, a secondary metabolite of the lichen Parmotrema tinctorum, and its derivatives, orsellinates, obtained by structural modifi cation. A cytotoxicity assay was carried out in vitro with sulforhodamine B (SRB) using HEp-2 larynx carcinoma, MCF7 breast carcinoma, 786-0 kidney carcinoma, and B16-F10 murine melanoma cell lines, in addition to a normal (Vero) cell line in order to calculate the selectivity index

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15

Zapravdina, Daria, Konstantin Eremeev, Ilya A. Yakushev, Anna Maksimova, Jourdan Bynerie, and Vladimir Burmistrov. "tert-Butyl (6-(3-(3-Fluorophenyl)ureido)hexyl)carbamate." Molbank 2025, no. 2 (2025): M1984. https://doi.org/10.3390/m1984.

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The title compound, tert-butyl (6-(3-(3-fluorophenyl)ureido)hexyl)carbamate, was synthesized and characterized by NMR, MS, elemental analysis, and single-crystal X-ray diffraction. This urea can serve as a framework for the preparation of unsymmetrical diureas or compounds containing both urea and thiourea groups.

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16

Hajar, Nasser, Ali Nawal, and Deeb Amjad. "Chemical Composition of Methanolic Extracts of Cactus Plant (Opuntia Ficus-Indica)." Chemistry Research Journal 4, no. 1 (2019): 125–30. https://doi.org/10.5281/zenodo.13752803.

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<em>Opuntiaficus-indica </em>is an important medicinal plant widely used in traditional systems of medicine. In the present work, the chemical composition of methanolic extracts of three parts of cactus plant (cladodes, flowers and fruits) was studied by using gas chromatography system equipped with mass spectrometry detector (GC-MS). Remarkable differences were noted between the composition and the constituent ratio of the different studied organs. The cladodes extract showed 10 compounds with different ratios, the highest ratio reached 33.57 % for a compound (Hexadecamethyl), and this extrac

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17

Havrylyk, O. P., Y. M. Andriichuk, V. M. Kushnir, and O. S. Liavynets. "Antioxidant properties of derivatives of 3,4-dihydropyrimidin-2-one with sterically hindered phenolic substituent in heterocycle." Chernivtsi University Scientific Herald. Chemistry, no. 818 (2019): 59–65. http://dx.doi.org/10.31861/chem-2019-818-08.

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In the processes of free-radical oxidation of organic compounds, the inhibitory action of the inhibitor is mainly due to either the breakdown of the reaction chains on its molecules, or the slowdown of the decomposition of intermediate hydroperoxides, or both at the same time. We analysed the inhibitory properties of 4-[3,5-di(tert-butyl)-4-hydroxyphenyl]-5-ethoxycarbonyl-6-methyl-3,4-dihydropyrimidin-2-one (I) and 4-[4-methoxyphenyl]-5-ethoxycarbonyl-6-methyl-3,4-dihydropyrimidin-2-one (II) gasometry and hydroperoxide decomposition methods. These compounds were obtained by the three-component

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18

Zhang, Qi, Yao Huang, Heran Cao, Fangyi Gong, Qingye Gan, and Beibei Mao. "Synthesis of tert-butyl 3-(2-(4-amino-3-(2-aminobenzo[d]oxazole-5-yl)-1H-pyrazole[3,4-d] pyrimidine-1-yl) ethoxy) propionate." Highlights in Science, Engineering and Technology 2 (June 22, 2022): 330–36. http://dx.doi.org/10.54097/hset.v2i.591.

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Tert-butyl 3-(2-(4-amino-3-(2-aminobenzo[d]oxazol-5-yl)-1H-pyrazole[3,4-d] pyrimidine-1-yl) ethoxy) propionate plays an important role in the whole synthesis route as an intermediate of target mTOR targeted PROTAC molecule PRO1. In this experiment, palladium catalyzed Suzuki reaction was used, the target compound tert-butyl 3-(2-(4-amino-3-(2-aminobenzo[d]oxazol-5-yl)-1H-pyrazole[3,4-d]pyrimidine-1-yl)ethoxy)propionate (compound 3) was synthesized from 5-(4,4,5,5-tetramethyl-1,3,2-dioxobenzaldehyde-2-yl) benzo[d]oxazole-2-amine (compound 1) and 3-(2-{4-amino-3-iodine-1H-pyrazole[3,4-d]pyrimidi

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19

Loginova, Natalia, Tat’yana Koval’chuk, Rimma Zheldakova, et al. "Copper (II) complexes of sterically hindered o-diphenol derivatives: synthesis, characterization and microbiological studies." Open Chemistry 4, no. 3 (2006): 440–57. http://dx.doi.org/10.2478/s11532-006-0025-1.

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AbstractCu (II) complexes with the sterically hindered diphenol derivatives 3,5-di(tert-butyl)-1,2-benzenediol (I), 4,6-di(tert-butyl)-1,2,3-benzenetriol (II) and the sulfur-containing 4,6-di(tert-butyl)-3-(2-hydroxyethylsulfanyl)-1,2-benzenediol (III) and 2-[4,6-di(tert-butyl)-2,3-dihydroxyphenylsulfanyl]acetic acid (IV) have been synthesized and characterized by elemental analysis, TG/DTA, FT-IR, ESR, XPS, XPD and conductivity measurements. Compounds I–III can coordinate in their singly deprotonated forms and act as bidentate ligands. These compounds yield Cu (II) complexes of the stoichiome

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20

Joseph, Sumy, Ranganathan Sathishkumar, Sudarshan Mahapatra, and Gautam R. Desiraju. "Crystal packing and melting temperatures of small oxalate esters: the role of C—H...O hydrogen bonding." Acta Crystallographica Section B Structural Science 67, no. 6 (2011): 525–34. http://dx.doi.org/10.1107/s0108768111037487.

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The simple dialkyl oxalates are generally liquids at room temperature except for dimethyl and di-tert-butyl oxalate which melt at 327 and 343 K. The crystal structures of diethyl, di-iso-propyl, di-n-butyl, di-tert-butyl and methyl ethyl oxalates were determined. The liquid esters were crystallized using the cryocrystallization technique. A comparison of the intermolecular interactions and packing features in these crystal structures was carried out. The crystal structure of dimethyl oxalate was redetermined at various temperatures. The other compounds were also studied at several temperatures

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21

Aitken, R. Alan, Lynn A. Power, and Alexandra M. Z. Slawin. "(2S,2’S,4R,5S,5’R)-2,2’-Di-tert-butyl-4-hydroxy-5,5’-dimethyl-4,5’-bi(1,3-dioxolanyl)-4’-one." Molbank 2023, no. 3 (2023): M1699. http://dx.doi.org/10.3390/m1699.

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The product formed by base-induced dimerisation of (2S,5S)-2-tert-butyl-5-methyl-1,3-dioxolan-4-one is shown by X-ray diffraction to be the title compound and not the isomeric fused-ring 1,3-dioxolane/1,3-dioxane-4-one structure proposed by previous researchers. The analogous compound derived from (2S,5S)-5-benzyl-2-tert-butyl-1,3-dioxolan-4-one has also been obtained and characterised.

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22

Kersting, Berthold, and Gunther Steinfeld. "On the Metalation of 2,6-Dimethyl-4-tert-butyl-thiophenol." Zeitschrift für Naturforschung B 53, no. 10 (1998): 1239–40. http://dx.doi.org/10.1515/znb-1998-1022.

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AbstractMetalation of 2,6-Dimethyl-4-tert-butyl-thiophenol (6) with n-BuLi/TMEDA in THF occurs regioselectively at the benzylic positions to produce lithium 2,6-di(lithiomethyl)-4-tert-butyl-benzenethiolate (7). Treatment of compound 7 with elem ental sulfur followed by iodine-oxidation affords an oxidation product 9a of bis(sulfanylmethyl)- 4-tert-butyl-thiophenol (5).

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23

Westerhausen, Matthias, Gerhard Sapelza, Manfred Zabel, and Arno Pfitzner. "(EtZn)4Zn2(PSitBu3)4 – a Homometallic Phosphanediide of Zinc with a Novel Zn6P4 Cage." Zeitschrift für Naturforschung B 59, no. 11-12 (2004): 1548–50. http://dx.doi.org/10.1515/znb-2004-11-1227.

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The metalation of tri(tert-butyl)silylphosphane with diethylzinc yields quantitatively the title compound tetraethyltetrakis(tri(tert-butyl)silylphosphanediido)hexazinc (1) with a novel Zn6P4 cage with two Zn2P2 rings interconnected by two zinc atoms.

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24

Zhang, Bo, Su Li, Mirza Cokoja, et al. "Ion Pairs of Weakly Coordinating Cations and Anions: Synthesis and Application for Sulfide to Sulfoxide Oxidations." Zeitschrift für Naturforschung B 69, no. 11-12 (2014): 1149–63. http://dx.doi.org/10.5560/znb.2014-4165.

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Abstract A series of salts containing the weakly coordinating cations (WCC) 1-butyl-3-methylimidazolium ([Bmim]+), 1-butyl-2,3-dimethylimidazolium ([Bdmim]+), 1-dodecyl-3-methylimidazolium ([C12mim]+), tetrabutylphosphonium ([PBu4]+), tributyltetradecylphosphonium ([P4;4;4;14]+), tetrabutylammonium ([NBu4]+), and 1,1,3,3-tetramethylguanidium ([TMG]+) and fluorinated tetraarylborate anions of the type [B(ArF)4] (ArF =C6F5, C6H3-3,5-(CF3)2) were synthesized and characterized. The influence of cations and anions on the physical properties of the obtained compounds was examined. In case of the com

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25

Firdaus, Firdaus, Jumina Jumina, and Hardjono Sastrohamidjojo. "SYNTHESIS AND CONFORMATION OF p-(AMINO)BUTOXYCALIX[4]ARENE." Indonesian Journal of Chemistry 7, no. 1 (2010): 49–57. http://dx.doi.org/10.22146/ijc.21712.

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Derivatization of 5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxycalix[4]-arene to 5,11,17,23-tetra-amino-25,26,27,28-tetrabutoxycalix[4]arene compound via etherification, ipso nitration, and reduction reactions, respectively has been conducted. The etherification reaction was carried out by refluxed the mixture of 5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxy-calix[4]arene, 1-bromobutane, NaI, and NaH in solvent mixture of THF-DMF (10:1 v/v) and nitrogen atmosphere for 4 hours to resulted 5,11,17,23-tetra-t-butyl-25,26,27,28-tetrabutoxycalix[4]-arene 84% in yield; ipso nitration reactio

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26

Alhusein-Kulyaginova, M. S., M. A. Dodokhova, S. Z. Agarizaeva, et al. "Evaluation of markers of apoptotic processes and peroxide oxidation of lipids of the mitochondrial fraction of the liver of animals carrying Lewis epidermoid carcinoma at different stages of the development of the tumor process with the introduction of organotin compounds with a tread fragment." South Russian Journal of Therapeutic Practice 4, no. 4 (2023): 89–94. http://dx.doi.org/10.21886/2712-8156-2023-4-4-89-94.

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Objective: to evaluate changes in markers of apoptotic processes and lipid peroxidation (POL) by accumulation of malondialdehyde (MDA) in the mitochondrial fraction of the liver of animals carrying Lewis epidermoid carcinoma at different stages of the tumor process with the introduction of bis-(3,5-di-tert-butyl-4-hydroxyphenyl)dimethylolol thiolate (Me-3) and (3,5-di-tert-butyl-4-hydroxyphenyl)triphenylololate (Me-5). Materials and methods: the work was performed using laboratory animals - female mice of the C57Bl line/6. 48 hours after the Lewis epidermoid carcinoma strain was transplanted,

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27

Pradip S. Shelar, Vijay D. Gangan, Snehal D. Patel, et al. "Synthesis of Novel Butyl Paraben Hybrid Derivative." International Journal of Scientific Research in Science and Technology 12, no. 4 (2025): 582–86. https://doi.org/10.32628/ijsrst251327.

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Parabens are class of chemicals widely used as preservatives in the cosmetic and pharmaceutical industries. They are effective preservatives in many types of formulas. These compounds and their salts are used primarily for their bacterial and fungicidal properties. They are also used as food additives. Their analogues viz. ethers, esters and hybrid / fused molecules also possess various biological activities which prompted us to synthesize few more analogues for their future application as bioactive molecules. The synthesized compound was unambiguously characterized by IR, 1HNMR, Maas and elem

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Dodokhova, M., I. Kotieva, A. Safronenko, et al. "EFFECT OF HYBRID ORGANOTIN COMPOUNDS AT THE MAXIMUM EFFECTIVE DOSE ON THE GROWTH AND METASTASIS ACTIVITY OF B16 MELANOMA IN C57BL/6 MICE." Crimea Journal of Experimental and Clinical Medicine 11, no. 3 (2022): 12–17. http://dx.doi.org/10.29039/2224-6444-2021-11-3-12-17.

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Metastasis is a complex multicomponent process that largely determines the effect of the tumor process on the body. The study of indicators of changes in the activity of metastasis under the influence of new antitumor agents is one of the most important tasks of experimental pharmacology and oncology. The effect of the organotin compounds (OOS) bis (3,5-di-tert-butyl-4-hydroxyphenylthiolate) dimethylolol (Me3) and (3,5-di-tert-butyl-4-hydroxyphenylthiolate) triphenylolol (Me5) was studied at the maximum effective total doses of 375 mg/kg and 250 mg/kg, respectively, on a model of a spontaneous

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29

Susilowati, Sri Sutji, and Santi Nur Handayani. "SINTESIS DAN UJI AKTIVITAS ANALGETIKA-ANTIINFLAMASI SENYAWA N-(4t-butilbenzoil)-p-aminofenol." Molekul 1, no. 1 (2006): 36. http://dx.doi.org/10.20884/1.jm.2006.1.1.21.

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The synthesis of N-4t-butyl benzoil-p-aminophenol has been done by reacting p-aminophenol and N-4t-butyl benzoil chloride compounds, then the products were isolated and analyzed by TLC, melting point determination, UV/Vis Spectrofotometry, infra red spectrofotometry and mass spectrometry. The synthesis yield of N-4t-butylbenzoil-p-aminophenol was 33,52%, with the compound melting point between 192-194 oCThe determination of analgesic (ED50 of % analgesic activity ) and anti inflammatory activity (ED50 of edema inhibition) gave the ED50 of % analgesic activity was 144 mg/kg and ED50 of % edema

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30

Al-Wahaibi, Lamya, Kowsalya Alagappan, Olivier Blacque, et al. "X-ray Structures and Computational Studies of Two Bioactive 2-(Adamantane-1-carbonyl)-N-substituted Hydrazine-1-carbothioamides." Molecules 27, no. 23 (2022): 8425. http://dx.doi.org/10.3390/molecules27238425.

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Two biologically active adamantane-linked hydrazine-1-carbothioamide derivatives, namely 2-(adamantane-1-carbonyl)-N-(tert-butyl)hydrazine-1-carbothioamide) 1 and 2-(adamantane-1-carbonyl)-N-cyclohexylhydrazine-1-carbothioamide 2, have been synthesized. X-ray analysis was conducted to study the effect of the t-butyl and cyclohexyl moieties on the intermolecular interactions and conformation of the molecules in the solid state. X-ray analysis reveals that compound 1 exhibits folded conformation, whereas compound 2 adopts extended conformation. The Hirshfeld surface analysis indicates that the c

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Shirokova, E. S., R. L. Vesnin, A. D. Khusainov, D. V. Oparina, and A. D. Khasanova. "MODIFICATION OF BITUMEN BY REGENERATED BUTYL COMPOUND." Herald Of Technological University 25, no. 10 (2022): 31–35. http://dx.doi.org/10.55421/1998-7072_2022_25_10_31.

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32

El-behairy, Mohammed Farrag, and Hanan Naeim Hafez Attia. "DESIGN, SYNTHESIS AND ANTICONVULSANT PROFILE OF 5-(BENZO [D][1,3]DIOXOL-5-YL)-3-TERT-BUTYL-4, 5-DIHYDROPYRAZOLE DERIVATIVES." International Journal of Pharmacy and Pharmaceutical Sciences 9, no. 6 (2017): 180. http://dx.doi.org/10.22159/ijpps.2017v9i6.17520.

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Objective: Utilisation of the ligand-based design and molecular hybridization to design promising candidates with prospective efficacy and safety. Synthesis of the designed candidates using different synthetic methods. Biological evaluation of the newly synthesised candidates as anticonvulsant agents.Methods: Three novel series of 5-(benzo[d][1,3]dioxol-5-yl)-3-tert-butyl-4,5-dihydropyrazoles have been designed via ligand-based drug discovery and molecular hybridization. Proper synthetic routes have been followed in the preparation of compounds (2-23) which have been characterised by different

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33

Jarmołowicz, Sylwia, Krystyna Demska-Zakęś, and Zdzisław Zakęś. "Impact of di-n-butyl phthalate on reproductive system development in European pikeperch (Sander lucioperca)." Acta Veterinaria Brno 82, no. 2 (2013): 197–201. http://dx.doi.org/10.2754/avb201382020197.

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Phthalic acid, di-n-butyl ester known as di-n-butyl phthalate, is an organic chemical compound that belongs to the group of endocrine disruptor compounds that have a documented negative impact on mammalian endocrine systems. Di-n-butyl phthalate is used widely as a plasticizer in the manufacture of artificial materials, which is why it is found in all types of environmental samples including those from water basins. The aim of the study was to describe the impact of di-n-butyl phthalate on the development of the reproductive system of European pikeperch (Sander lucioperca) during the sex diffe

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34

Konus, Metin, Selahattin Aydemir, Can Yilmaz, Arif Kivrak, Aslihan Kurt Kizildogan, and Pembegül Uyar Arpacı. "Synthesis and Evaluation of Antioxidant, Antimicrobial and Anticancer Properties of 2-(Prop-2-yn-1-yloxy)benzaldehyde Derivatives." Letters in Organic Chemistry 16, no. 5 (2019): 415–23. http://dx.doi.org/10.2174/1570178616666181116100232.

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5-bromo-2-(prop-2-yn-1-yloxy)benzaldehyde (compound 3) and 3,5-di-tert-butyl-2-(prop-2- yn-1-yloxy)benzaldehyde (compound 5) were synthesized via nucleophilic substitution reactions. Compound 5 showed higher antioxidant capacity with respect to compound 3 in all the four different antioxidant activity methods used. Moreover, in phosphomolybdenum assay, compound 5, with 1.1 proportion value, showed almost the same total antioxidant capacity compared to universal trolox standard. Furthermore, Broth microdilution method and agar disc diffusion tests demonstrated that the same compound also exhibi

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35

Imran, Mohd. "2-Butyl-6-phenyl-4,5-dihydropyridazin-3(2H)-one: Synthesis, In Silico Studies and In Vitro Cyclooxygenase-2 Inhibitory Activity." Molbank 2020, no. 3 (2020): M1155. http://dx.doi.org/10.3390/m1155.

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Pyridazinone derivatives are a great template for developing cyclooxygenase-2 (COX-2) inhibitors. The 2-butyl-6-phenyl-4,5-dihydropyridazin-3(2H)-one was prepared by reacting 6-phenyl-4,5-dihydropyridazin-3(2H)-one with n-butyl bromide in the presence of potassium carbonate. The structure of the compound was confirmed based on its FTIR, 1H-NMR, 13C-NMR, and Mass data. The molecular docking studies assessed the COX-2 binding capability of the synthesized compound. The in silico physicochemical and pharmacokinetic parameters of this compound concerning selected drugs were also calculated. The CO

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36

Hendley, Paul, John W. Dicks, Thomas J. Monaco, Susan M. Slyfield, O. John Tummon, and John C. Barrett. "Translocation and Metabolism of Pyridinyloxyphenoxypropionate Herbicides in Rhizomatous Quackgrass (Agropyron repens)." Weed Science 33, no. 1 (1985): 11–24. http://dx.doi.org/10.1017/s0043174500083867.

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Radiolabeled (14C) 2-[4-(3-chloro-5-trifluoromethyl-2-pyridinyloxy)phenoxy] propionic acid (Compound C); its methyl-,n-butyl-, and ethoxyethyl-esters; and fluazifop-butyl {(±)-butyl 2-[4-[(5-(trifluoromethyl)-2-pyridinyl)oxy] phenoxy] propionate} were applied to the primary shoots of young rhizomatous quackgrass [Agropyron repens(L.) Beauv. # AGRRE]. Plants were sampled from 0.5 to 24 days after treatment (DAT) and analyzed for radiochemical. All treatments caused phytotoxic symptoms in primary shoots, rhizomes, and tillers and significantly reduced growth of primary shoots and rhizomes. Treat

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37

Dimitrijevic, Dejana, Sladjana Novakovic, Gordana Radic, et al. "Synthesis, characterization and crystal structure of butyl N-(3-chloropropyl)-(2S)-alaninate hydrochloride." Journal of the Serbian Chemical Society 78, no. 10 (2013): 1531–37. http://dx.doi.org/10.2298/jsc130214054d.

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The synthesis of butyl N-(3-chloropropyl)-(2S)-alaninate hydrochloride is reported here. The compound was characterized by elemental analysis, infrared, 1H and 13C NMR spectroscopy. The structure of butyl N-(3-chloropropyl)-(2S)-alaninate hydrochloride was confirmed by single-crystal X-ray analysis.

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38

Li, Ke-Jian, Shu-Rong Ban, Xiao-Feng Cheng, Hong-Jun Liu, and Wen-Bin Chen. "1-Butyl-3-(4-chloro-1,3-benzothiazol-2-yl)urea monohydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): o2755—o2756. http://dx.doi.org/10.1107/s1600536806021118.

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In the crystal structure of the title compound, C12H14ClN3OS·H2O, the butyl(chlorobenzo[d]thiazolyl)urea molecule, excluding butyl H atoms, displays a roughly planar structure. The water molecules link with the urea derivative molecules via O—H...O and N—H...O hydrogen bonding.

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39

Maftei, Catalin V., Elena Fodor, Peter G. Jones, et al. "Synthesis and characterization of novel bioactive 1,2,4-oxadiazole natural product analogs bearing the N-phenylmaleimide and N-phenylsuccinimide moieties." Beilstein Journal of Organic Chemistry 9 (October 25, 2013): 2202–15. http://dx.doi.org/10.3762/bjoc.9.259.

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Taking into consideration the biological activity of the only natural products containing a 1,2,4-oxadiazole ring in their structure (quisqualic acid and phidianidines A and B), the natural product analogs 1-(4-(3-tert-butyl-1,2,4-oxadiazol-5-yl)phenyl)pyrrolidine-2,5-dione (4) and 1-(4-(3-tert-butyl-1,2,4-oxadiazol-5-yl)phenyl)-1H-pyrrole-2,5-dione (7) were synthesized starting from 4-(3-tert-butyl-1,2,4-oxadiazol-5-yl)aniline (1) in two steps by isolating the intermediates 4-(4-(3-tert-butyl-1,2,4-oxadiazol-5-yl)phenylamino)-4-oxobutanoic acid (3) and (Z)-4-(4-(3-tert-butyl-1,2,4-oxadiazol-5

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40

Kim, Yoon-Jung, Dong Hoon Lee, Yong-Sung Choi, Jin-Hyun Jeong, and So Hee Kwon. "Benzo[b]tellurophenes as a Potential Histone H3 Lysine 9 Demethylase (KDM4) Inhibitor." International Journal of Molecular Sciences 20, no. 23 (2019): 5908. http://dx.doi.org/10.3390/ijms20235908.

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Gene expression and tumor growth can be regulated by methylation levels of lysine residues on histones, which are controlled by histone lysine demethylases (KDMs). Series of benzo[b]tellurophene and benzo[b]selenophene compounds were designed and synthesized and they were evaluated for histone H3 lysine 9 demethylase (KDM4) inhibitory activity. Among the carbamates, alcohol and aromatic derivatives, tert-butyl benzo[b]tellurophen-2-ylmethylcarbamate (compound 1c) revealed KDM4 specific inhibitory activity in cervical cancer HeLa cells, whereas the corresponding selenium or oxygen substitute co

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41

Uhl, Werner, and Andreas Vogelpohl. "Treatment of Tetramethylpyrazole and 3,5-Diphenylpyrazole with Dialkylaluminum Hydrides - Hydroalumination versus Deprotonation." Zeitschrift für Naturforschung B 65, no. 6 (2010): 687–94. http://dx.doi.org/10.1515/znb-2010-0604.

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Treatment of tetramethylpyrazole, N2C3Me4, with equimolar quantities of di(tert-butyl)aluminum hydride leads to the addition of an Al-H bond to one of the C=N double bonds. The dimeric product (1) contains a central six-membered Al2N4 ring in which two tBu2Al+ units are bridging two N2C3 heterocycles. In the zwitterionic, non-centrosymmetric compound one aluminum atom is coordinated by two imino nitrogen atoms, while the second one is bonded to two amide nitrogen atoms. No double hydroalumination occurs upon treatment of tetramethylpyrazole with two equivalents of the hydride. Instead, an addu

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42

Sun, Xinpeng, Wei Yu, Lijing Min, et al. "Synthesis, Structural Determination, and Antifungal Activity of Novel Fluorinated Quinoline Analogs." Molecules 28, no. 8 (2023): 3373. http://dx.doi.org/10.3390/molecules28083373.

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A series of new fluorinated quinoline analogs were synthesized using Tebufloquin as the lead compound, 2-fluoroaniline, ethyl 2-methylacetoacetate, and substituted benzoic acid as raw materials. Their structures were confirmed by 1H NMR, 13C NMR, and HRMS. The compound 8-fluoro-2,3-dimethylquinolin-4-yl 4-(tert-butyl)benzoate (2b) was further determined by X-ray single-crystal diffraction. The antifungal activity was tested at 50 μg/mL, and the bioassay results showed that these quinoline derivatives had good antifungal activity. Among them, compounds 2b, 2e, 2f, 2k, and 2n exhibited good acti

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43

Kuvaeva, E. V., Yu M. Ladutko, D. A. Kolesnik, P. O. Levshukova, and E. V. Fedorova. "Synthesis and determination of the activity of a new derivative of hydroxyoxopyrimidine, a potential object for the manufacture of anti-inflammatory gel." JOURNAL of SIBERIAN MEDICAL SCIENCES 6, no. 1 (2022): 46–55. http://dx.doi.org/10.31549/2542-1174-2022-6-1-46-55.

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Introduction. Compounds with a hydroxypyrimidine fragment in their structure exhibit pronounced and diverse biological activity. The low solubility of many hydroxypyrimidine derivatives in water is a significant drawback in the development of new medicines. From 5-butyl-6-hydroxy-2,3-diphenylpyrimidin-4(3H)-one, its water-soluble form being a sodium salt was obtained. This compound, as it was revealed during the computer screening of its possible biological acti¬vity in silico, can potentially be used as a pharmaceutical substance for the production (manufacture) of drugs. Since the line of hy

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44

Jiang, Yuqin, Huaqiang Zhanga, Xiangjian Wan, et al. "2,5,8-Tri-tert-butyl-1,3,4,6,7,9-hexaazaphenalene: Synthesis, Crystal Structure and Calculation of Homolytic N–H Bond Dissociation Enthalpies." Zeitschrift für Naturforschung B 63, no. 12 (2008): 1425–30. http://dx.doi.org/10.1515/znb-2008-1214.

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2,5,8-Tri-tert-butyl-1,3,4,6,7,9-hexaazaphenalene (6) was prepared from diethyl 2-[bis(methylsulfanyl) methylene]malonate (1) in four steps. The structure of compound 6 was confirmed by single crystal X-ray diffraction. The phenalene skeleton is nearly planar, and there is no π-π overlap between the hexaazaphenalene rings. A calculation of the homolytic bond dissociation enthalpy (BDE) was performed for compound 6 and its analogs 7 and 8, and the results were used to explain the different reactivity for these three compounds to form the corresponding radicals.

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45

Anke, Heidrun, Elisabeth Hillen-Maske та Wolfgang Steglich. "9 β-Hydroxymarasmic Acid and Other Sesquiterpenoids from Submerged Cultures of a Basidiomycete [1]". Zeitschrift für Naturforschung C 44, № 1-2 (1989): 1–6. http://dx.doi.org/10.1515/znc-1989-1-202.

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Abstract 9 β-Hydroxymarasmic acid, a new sesquiterpenoid, marasmic acid and isovelleral were isolated from cultures of a basidiomycete. Comparison of the antimicrobial activity of the three natural compounds together with two n-butyl ether derivatives of marasmic acid revealed MICs against bacteria in the range of 0 .2 -20 ng/ml. The antifungal, cytotoxic and phytotoxic activities of isovelleral were similar to those exhibited by marasmic acid, whereas the marasmic acid deriva tives were considerably less active than the parent compound. Isovelleral was the only compound to show hemolytic act

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46

Biesemeier, Frank, and Ulrich Müller. "Die Reaktion von Phenylpentazol mit n-Butyllithium. Synthese von 1,1-Di-n-butyl-2-phenylhydrazin / The Reaction of Phenylpentazole with n-Butyl Lithium. Synthesis of 1,1-Di-n-butyl-2-phenylhydrazine." Zeitschrift für Naturforschung B 59, no. 3 (2004): 351–54. http://dx.doi.org/10.1515/znb-2004-0322.

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The reaction of phenylpentazole, C6H5-cyclo-N5, with n-butyl lithium in tetrahydrofuran or in diethylether does not yield a lithium pentazolide such as Li(THF)4+N5−. Instead, a mixture of several primary products is obtained, which probably include lithium 1-n-butyl-5-phenyl-pentaazadienide, Li+[n-C4H9− N=N−N−N=N−C6H5]− and di-n-butyl-phenylhydrazide, Li+[(n-C4H9)2N−N−C6H5]−. After hydrolysis 1,1-di-n- butyl-2-phenylhydrazine, (n- C4H9)2N−NH−C6H5, is ob- tained with good yield. This compound is an oil that was characterized by NMR, mass and IR spectroscopy

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47

Lee, Jaehyun, Seungho Kim, Jee-Hwan Kim, and Jongwook Park. "A New Anthracene Derivative Containing t-Butyl Group for Solution Process Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 15, no. 10 (2015): 8285–88. http://dx.doi.org/10.1166/jnn.2015.11258.

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4-(10-(3′,5′-diphenylbiphenyl-4-yl)anthracen-9-yl)-N,N-diphenylaniline [TATa] and a new anthracene derivative of 4-(2 or 3-tert-butyl-10-(3′,5′-diphenylbiphenyl-4-yl)anthracen-9-yl)-N,N-diphenylaniline [T-TATa] isomer by introduced t-butyl group were synthesized. OLED devices of TATa and T-TATa were fabricated by solution process. Its physical properties such as optical, electrochemical, and electroluminescent properties were also investigated. Two compounds were used as emitting layer (EML) in OLED device: ITO/PEDOT (40 nm)/synthesized materials (60 nm)/TPBi (20 nm)/LiF (1 nm)/Al (200 nm). Th

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48

Ünver, Hakan, Burak Berber, Rasime Demirel, and Ayşe T. Koparal. "Design, Synthesis, Anti-Proliferative, Anti-microbial, Anti-Angiogenic Activity and In Silico Analysis of Novel Hydrazone Derivatives." Anti-Cancer Agents in Medicinal Chemistry 19, no. 13 (2019): 1658–69. http://dx.doi.org/10.2174/1871520619666190318125824.

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Background: Cancer is the second leading cause of death globally. Hydrazone and hydrazone derivatives have high activity, and for this reason, these compound are greatly used by researchers to synthesize new anti-cancer drug. The aim of this research work is to synthesize novel anticancer agents. Methods: New hydrazone derivatives were synthesized via a reaction between 3-formylphenyl methyl carbonate and benzhydrazide, 4-methylbenzoic hydrazide, 4-tert-butylbenzoic hydrazide, 4-nitrobenzoic hydrazide and 3- methoxybenzoic hydrazide, and were successfully characterized using elemental analysis

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49

Yao, Jin-Li, Xu Zhang, Hong-Yan Li, and Jian-Qing Ye. "(E)-4-Bromo-N-{(E)-3-[(4-bromo-2-methylphenyl)imino]butan-2-ylidene}-2-methylaniline." Acta Crystallographica Section E Structure Reports Online 69, no. 2 (2013): o199. http://dx.doi.org/10.1107/s1600536812052087.

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The title compound, C18H18Br2N2, is centrosymmetric with the mid-point of the central C—C bond of the butyl group located on an inversion center. The terminal benzene ring is approximately perpendicular to the central butyl plane [dihedral angle = 71.9 (8)°]. No hydrogen bonding or aromatic stacking is observed in the crystal.

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50

Golin, John, Alisa Barkatt, Susan Cronin, George Eng, and Leopold May. "Chemical Specificity of the PDR5Multidrug Resistance Gene Product of Saccharomyces cerevisiae Based on Studies with Tri-n-Alkyltin Chlorides." Antimicrobial Agents and Chemotherapy 44, no. 1 (2000): 134–38. http://dx.doi.org/10.1128/aac.44.1.134-138.2000.

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ABSTRACT To understand the chemical basis of action for thePDR5-encoded multidrug resistance transporter ofSaccharomyces cerevisiae, we compared the relative hypersensitivities of the wild-type (RW2802) and null mutant strains toward a series of tri-n-alkyltin compounds. These compounds differ from each other in a systematic fashion—either by hydrocarbon chain length or by anion composition. Using zone-of-inhibition and fixed-concentration assays, we found that the ethyl, propyl, and butyl compounds are strong PDR5substrates, whereas the methyl and pentyl compounds are weak. We conclude that h

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