ELECTRON TRANSFER AS THE INITIATING STAGE OF DEHYDROGENATION OF BENZIMIDAZOLINES BY THE TRIPHENYLMETHYL CATION

Article abstract of DOI:10.1007/BF01166330

We consider radical-ion mechanism for dehydroaromatization of benzimidazolines by triarylmethyl cations, including as the initial step electron transfer from the hydroheteroaromatic compound to the electrophilic reagent.We draw the conclusion that there is significant weakening of the C₍₂₎-H bond in the benzimidazoline radical cation formed in this stage,