Elemental tellurium mediated synthesis of 2-(trifluoromethyl)oxazoles using trifluoroacetic anhydride as reagent
作者:Beibei Luo、Zhiqiang Weng
DOI:10.1039/c8cc05670f
日期:——
An elemental tellurium mediated synthesis of 2-(trifluoromethyl)oxazoles from the reaction of acetophenone oxime acetates with trifluoroacetic anhydride has been developed. This new tandem cyclization proceeds in good to excellent yields via a SET reduction followed by a 5-endo-trig pathway. Some of the title compounds showed fungicidal and insecticidal activities.
由乙酰苯肟肟乙酸酯与三氟乙酸酐的反应,开发了一种由元素碲介导的2-(三氟甲基)恶唑的合成方法。这种新的串联环化反应通过SET还原反应继之以5-内-trig途径,以良好至优异的产率进行。一些标题化合物显示出杀真菌和杀虫活性。