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.