Phosphorus pentachloride-induced transformation of (1,2,3-thiadiazol-5-yl)hydrazones of acetophenone
作者:T. A. Kalinina、P. E. Prokhorova、T. V. Glukhareva、Yu. Yu. Morzherin
DOI:10.1007/s11172-011-0154-3
日期:2011.5
Reactions of (4-ethoxycarbonyl-1,2,3-thiadiazol-5-yl)hydrazones of acetophenone with PCl5 led to transformation of the 1,2,3-thiadiazole moiety involving four atoms of the side chain to give 6-aryl-5H-[1,2,3]triazolo[5,1-b][1,3,4]thiadiazine-3-carbonyl chlorides. Reaction of the latter with alcohols and amines gave the corresponding esters and amides.
苯乙酮的 (4-ethoxycarbonyl-1,2,3-thiadiazol-5-yl) 腙与 PCl5 的反应导致 1,2,3-噻二唑部分的转化,涉及侧链的四个原子,得到 6-芳基- 5H-[1,2,3]三唑并[5,1-b][1,3,4]噻二嗪-3-碳酰氯。后者与醇和胺反应得到相应的酯和酰胺。