Enhancement of N-heterocyclic carbenes on rhodium catalyzed olefination of triazoles†
Abstract
A few rhodium complexes of N-heterocyclic carbenes were prepared through carbene transfer reactions and their structures were characterized by X-ray diffraction analysis. The rhodium complexes of NHCs are found to be efficient catalysts for vinylation of various triazoles via C–H activation. A number of double vinylated triazoles can be obtained in good yields.