Mesoionicthiazoles are obtained in good yield by the reaction of gem-dicyano epoxides with thioamides in a neutral medium.
在中性介质中,通过使宝石-二氰基环氧化物与硫酰胺反应,可得到高收率的离子型噻唑。
BAUDY M.; ROBERT A.; FOUCAUD A., J. ORG. CHEM., 1978, 43, NO 19, 3732-3736
作者:BAUDY M.、 ROBERT A.、 FOUCAUD A.
DOI:——
日期:——
Reaction of N-substituted thioamides with gem-dicyano epoxides: a new synthetic route to anhydro-4-hydroxythiazolium hydroxides
作者:Michele Baudy、Albert Robert、Andre Foucaud
DOI:10.1021/jo00413a023
日期:1978.9
Reaction de Cycloaddition dipolaire-1,3-des thiazolones et des selenazolones mesoioniques avec l'acetylene dicarboxylate de methyle—II
作者:M. Baudy、A. Robert、C. Guimon
DOI:10.1016/0040-4020(82)85160-0
日期:1982.1
Mesoionic thiazolones and selenazolones react with dimethyl acetylene dicarboxylate to give thiophenes or pyridones. We show that the reactivity of the mesoionic thiazolones towards dimethyl acetylene dicarboxylate may be explained by second order perturbation theory, limited to frontier orbitals. The influence of the temperature and of the nature of the substituants on the evolution of the primary