Tetrahedron letters

BF 3· Et 2 O promoted one-pot expeditious and convenient synthesis of 2-substituted benzimidazoles and 3, 1, 5-benzoxadiazepines

VK Tandon, M Kumar

文献索引：Tandon, Vishnu K.; Kumar, Manoj Tetrahedron Letters, 2004 , vol. 45, # 21 p. 4185 - 4187

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被引用次数: 74

摘要

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.