Palladium-catalyzed α-arylation of enones in the synthesis of 2-alkenylindoles and carbazoles

Org Lett. 2015 Mar 6;17(5):1324-7. doi: 10.1021/acs.orglett.5b00324. Epub 2015 Feb 23.

Abstract

A new unified strategy has been developed for the synthesis of substituted 2-alkenylindoles and carbazoles. The strategy uses palladium-catalyzed α-arylation of TES-enol ethers of enones as the key step. The method is highly regioselective, provides good yields, and is expected to have wide application.