2-Bromo-1-(1H-pyrazol-4-yl)ethanone: versatile precursors for novel mono-, bis- and poly{6-(1H-pyrazol-4-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines}
作者:Mostafa E. Salem、Ahmed F. Darweesh、Ahmad M. Farag、Ahmed H.M. Elwahy
DOI:10.1016/j.tet.2015.12.024
日期:2016.2
A simple synthesis of novel mono-, bis- and poly6-(1H-pyrazol-4-yl)-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines} is reported. The formation of the target compounds was achieved by the reaction of 2-bromo-1-(5-methyl-1-phenyl-1H-pyrazol-4-yl)ethanone with the appropriate aminotriazolethiol or by the reaction of 6-pyrazolyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine-3-thiol with the appropriate di- and
新型单,双和聚6-(1 H-吡唑-4-基)-[1,2,4]三唑[3,4- b ] [1,3,4]噻二嗪的简单合成被报道。通过2-溴-1-(5-甲基-1-苯基-1 H-吡唑-4-基)乙酮与适当的氨基三唑硫醇的反应或6-吡唑基-的反应实现目标化合物的形成。7 H- [1,2,4]三唑并[3,4- b ] [1,3,4]噻二嗪-3-硫醇与适当的二-和聚(溴)化合物。通过光谱和元素分析确定了新合成化合物的结构。