Organic Letters 2009-01-01

A novel synthetic route to 3-sulfenyl- and 3-selenylindoles by n-Bu4NI-induced electrophilic cyclization.

Yu Chen, Chul-Hee Cho, Richard C Larock

Index: Org. Lett. 11(1) , 173-6, (2009)

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Abstract

3-Sulfenyl- and 3-selenylindoles are prepared in excellent yields by the palladium/copper-catalyzed crossing coupling of N,N-dialkyl-o-iodoanilines and terminal alkynes, followed by electrophilic cyclization with arylsulfenyl chlorides and arylselenyl chlorides in the presence of a stoichiometric amount of n-Bu(4)NI.


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  • 4-nitrobenzenesulf...

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