available cyanothiadiazoles containing an ester, amide, or ether as a linker is described. It provides a wide range of bicyclic isothiazoles in good to excellent yields together with the release of molecular nitrogen. These results indicate that the carbon atom in the α-thiavinyl carbene is nucleophilic and that the sulfur atom is electrophilic.
描述了分子内
铑催化的容易获得的含有酯,酰胺或醚作为连接基的
氰基
噻二唑的环转移。它提供了范围广泛的双环
异噻唑,收率良好至极佳,并且释放出分子氮。这些结果表明,α-
硫代
乙烯基卡宾中的碳原子是亲核的,
硫原子是亲电子的。