Organic letters

Regioselective synthesis of indoles via reductive annulation of nitrosoaromatics with alkynes

A Penoni, J Volkmann, KM Nicholas

Index: Penoni, Andrea; Volkmann, Jerome; Nicholas, Kenneth M. Organic Letters, 2002 , vol. 4, # 5 p. 699 - 701

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Citation Number: 60

Abstract

Indoles are produced regioselectively and in moderate yields by two new processes:(a) from the [Cp* Ru (CO) 2] 2-catalyzed reaction of nitrosoaromatics (ArNO) with alkynes under carbon monoxide and (b) in a two-step sequence involving the (uncatalyzed) reaction of ArNO with alkynes, followed by reduction of the intermediate adduct.