A Convenient Procedure for Preparing Hetarylamides and Their Analogs by Dehydrogenation of the Corresponding Imidazoles

摘要

Conditions of aromatization of 2-(2-hetaryl)imidazolines and their analogs with various dehydrogenating agents were examined. A new catalytic system, Pd/C-diphenyl oxide, was studied, and the optimal catalyst: imidazoline ratio ensuring formation of 2-substituted imidazoles in high yield was found.