The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone( cas:86404-63-9 ) is researched.Recommanded Product: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone.Narayanan, Anjana; Chapman, David R.; Upadhyaya, Subhash P.; Bauer, Ludwig published the article 《Conversion of 4-amino-4H-1,2,4-triazole to 1,3-bis(1H-azol-1-yl)-2-aryl-2-propanols and 1-phenacyl-4-[(benzoyl or 4-toluenesulfonyl)imino]-(1H-1,2,4-triazolium) ylides》 about this compound( cas:86404-63-9 ) in Journal of Heterocyclic Chemistry. Keywords: propanol azolylaryl preparation; fluconazole analog preparation. Let’s learn more about this compound (cas:86404-63-9).
1,3-Bis(1H-azol-1-yl)-2-aryl-2-propanols I (A,B = N, CH; Z = halo) were prepared in a one-pot procedure by reacting 1-aryl-2-(1H-1,2,4-triazol-1-yl)- or 1-aryl-2-(1H-imidazol-1-yl)ethanones with dimethylsulfoxonium methide in the presence of either 1,2,4-triazole or imidazole. The aromatic groups in I were either 4-bromo-, 4-chloro-, 2,4-dichloro- or 2,4-difluorophenyl. 4-Amino-4H-1,2,4-triazole was acylated with either benzoyl or 4-toluenesulfonyl chloride to afford [4-(benzoyl or 4-toluenesulfonyl)amino]-4H-1,2,4-triazole. Subsequent alkylations with 4-bromo- or 4-chlorophenacyl bromide produced 1-(4-bromo- or 4-chlorophenacyl)-4-[(benzoyl- or 4-toluenesulfonyl)amino]-1H-1,2,4-triazolium bromides. Neutralizations of these salts provided the corresponding ylides.
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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics