Novel benzoyl migration of the intermediary 1:1 adducts of 1,3-dipolar cycloaddition of thiazolo[3,2-b][1,2,4]-triazolium N-phenacylides with dimethyl acetylenedicarboxylate
作者:Tatsunori Iwamura、Takashi Ichikawa、Hiroshi Shimizu、Tadashi Kataoka、Toshitsugu Kai、Hiroaki Takayanagi、Osamu Muraoka
DOI:10.1016/s0040-4039(00)60737-2
日期:1994.6
Reaction of thiazolo[3,2-b][1,2,4]triazolium N-phenacylides 3 with dimethyl acetylene-dicarboxylate gave novel compounds, 2-(1H-pyrrolo[2,1-c]-1,2,4-triazolyl)ethenyl thiobenzoates 4 and 2-[2-(1H-pyrrolo[2,1-c]-1,2,4-triazolyl)ethenylthio]propenoates 5. The former products 4 would be formed via a new type of intramolecular benzoyl migration of the intermediary 1:1 adducts 6.
噻唑并[3,2- b ] [1,2,4]三唑鎓N-苯甲酰内酯3与乙炔-二羧酸二甲酯反应,生成新化合物2-(1 H-吡咯并[ 2,1 - c ] -1,2, 4-三唑基)乙烯基硫代苯甲酸酯4和2- [2-(1H-吡咯并[2,1 - c ] -1,2,4-三唑基)乙烯基硫代]丙酸酯5。前一种产品4将通过新型的1:1中间加合物6的分子内苯甲酰迁移形成。