Tetrahedron Letters

Acid-catalyzed condensation of 2, 2′-diamino-1, 1′-biaryls for the synthesis of benzo [c] carbazoles

BY Lim, MK Choi, CG Cho

Index: Lim, Byong-Yun; Choi, Min-Kyung; Cho, Cheon-Gyu Tetrahedron Letters, 2011 , vol. 52, # 45 p. 6015 - 6017

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Citation Number: 14

Abstract

2, 2′-Diamino-1, 1′-biaryls were found to undergo ring-closure condensation reaction to afford benzo [c] carbazoles in good to excellent yield. Coupled with the synthesis of 2, 2′- biaryldiamines from diaryl hydrazides via [3, 3]-sigmatropic rearrangement, it constitutes a new efficient synthetic method for benzo [c] carbazoles and related compounds.

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