Imino exchange reaction in a dearomatization strategy: synthesis of N-acyl diarylamines and phenothiazines from two anilines

Abstract

N-Sulfonyl cyclohexadienimines generated from an iodine(III)-induced oxidative dearomatization of N-sulfonyl protected para-substituted anilines are ready to undergo an imino exchange reaction with another aniline, which provides an alternative way to access N-acyl diarylamines and phenothiazines.