BF 3 ·Et 2 O promoted one-pot expeditious and convenient synthesis of 2-substituted benzimidazoles and 3,1,5-benzoxadiazepines
作者:Vishnu K. Tandon、Manoj Kumar
DOI:10.1016/j.tetlet.2004.03.117
日期:2004.5
2-Substituted benzimidazoles and 3,1,5-benzoxadiazepines have been synthesized in excellent yields in a single pot by cyclodehydration of N-acyl-1,2-phenylenediamines and N,N′-diacyl-1,2-phenylenediamines prepared in situ from the corresponding 1,2-phenylenediamines and an acid chloride, respectively.