Free radical cyclisation of diphenylamine; a convenient synthesis of carbazole and 3-methylcarbazole

P Bhattacharyya, SS Jash, AK Dey

Index: Bhattacharyya, Prantosh; Jash, Sagar S.; Dey, Asesh K. Journal of the Chemical Society, Chemical Communications, 1984 , # 24 p. 1668 - 1669

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Citation Number: 9

Abstract

The cyclisation of diphenylamine to carbazole is known to proceed at red heat in very poor yield; photolytic methods also bring about this cyclisation, 1.2 which also occurs-' on heating diphenylamine with 1 2 at 350 OC, presumably viu a free-radical pathway.4 Benzoyl peroxide is a well known radical generator at moderate temperature, and we now report that diphenyl- ... Published on 01 January 1984. Downloaded by google on 13/04/2016 09:49:40.