Abstract

A palladium-catalyzed cross-coupling reaction between 2-susbtituted indole and allyltrimethylsilanes in the absence of fluoride anion source was studied. The optimal conditions for the reaction were identified after various reaction conditions examined, using Pd(OAc)2 as the catalyst, Cu(OTf)2 as oxidant, and DMSO as solvent, leading to the synthesis of a series of benzindoles bearing allyl group in good to high yields.

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