Results 71 to 80 of about 26,240 (223)
, 2016 Herein we report the synthesis of a series of poly(4-alkyl-1-vinyl-1,2,4-triazolium) poly(ionic liquid)s either via straightforward free radical polymerization of their corresponding ionic liquid monomers, or via anion metathesis of the polymer ...
Yuan, Jiayin, Zhang, Weiyi
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Synthesis of some novel Schiff bases containing 1,2,4-triazole ring [PDF]
, 2010 4-Allyl-5-piridine-4-yl-4H-1,2,4-triazole-3-thiol was prepared under facile condition via the formation of 2-isonicotinoyl-N-allylhydrazinecarbothioamide. In addition, ethyl[(4-allyl-5-pyridine-4-yl-4H-1¸2¸4-triazole-3-yl)thio]acetate was synthesized via
Ebrahimi, Sattar +3 more
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, 2012 ABSTRACT 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.
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Synthesis and Antibacterial Activity of 1,3,4-Oxadiazole and 1,2,4-Triazole Derivatives of Salicylic Acid and its Synthetic Intermediates [PDF]
, 2015 Eight compounds 2–9 have been synthesized starting from salicylic acid, two of them (7 and 9) are novel. The four final products namely: 5-(2-hydroxy phenyl)-1,3,4-oxadiazole-2-thione 4, 3-(2-hydroxy phenyl)-1H-1,2,4-triazole-5-thiol 6, 3-(2-hydroxy ...
Guessas, B, Khiati, Z, Othman, AA
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On the Formation of 1,2,4-Triazole-5-Thiol
, 1968 Depending on the nature of acyl group the interaction of an acylhydrazine with thiourea at 125-130° leads to the formation of either 1, 2, 4-triazole-5-thiol or l-acyl thiosemicarbazide. The latter can be converted to triazole-5-thiol by subsequent reaction with sodium ethoxide.
Saktipada Dutta +2 more
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Regioselectivity of the alkylation of S-substituted 1,2,4-triazoles with dihaloalkanes [PDF]
Chemistry Central Journal, 2016 1,2,4-Triazole3-thiones are good scaffolds for preparation of new lead compounds. Their derivatives attracted the attention of chemists due to their wide spectrum of biological activities. Alkylsulfanyl-1,2,4-triazoles have three nucleophilic sites (nitrogens) ready for reaction with electrophiles. Herein, new regioselective isomers were synthesized by
Axel Duerkop +2 more
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Method for Direct Preparation for 1,2,4-Triazole from Hydrazine and Formamide [PDF]
, 1981 Process for the preparation of 1,2,4-triazole comprises contacting hydrazine or its aqueous solutions with at least about 2.5 moles of formamide at a temperature of 140° to 210° C.
Gupton, John T. +2 more
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Phosphinoisocyanide Cyclisation: Generation of Azaphospholylidene (NPHC) Ligands
Angewandte Chemie International Edition, Accepted Article.Phosphinoisocyanide complexes undergo facile [3+2] cycloaddition reactions with activated alkynes to afford the first azaphospholylidene complexes which are rare examples of N,P‐heterocyclic carbenes (NPHC). In addition to quantifying the donor/acceptor properties of this new class of carbene, their transmetallation reactions are also described.
Anthony Francis Hill, Ryan M. Kirk
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Biomedicines, 2023 Benzofuran, 1,3,4-oxadiazole, and 1,2,4-triazole are privileged heterocyclic moieties that display the most promising and wide spectrum of biological activities against a wide variety of diseases. In the current study, benzofuran-1,3,4-oxadiazole BF1–BF7
Ali Irfan +9 more
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Normal and reversed phase high performance liquid chromatography of some new 1, 2, 4-triazole derivatives [PDF]
, 2003 The retention behaviour and separation ability of normal and reversed phase HPLC with one non-polar and two polar mobile phases, have been studied by measuring the retention constants of a series of newly synthesized 1,2,4-triazole derivatives.
Ačanski Marijana M. +2 more
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