Gold-Catalyzed Cascade Reaction of Skipped Diynes for the Construction of a Cyclohepta[b]pyrrole Scaffold

Org Lett. 2017 Jul 21;19(14):3875-3878. doi: 10.1021/acs.orglett.7b01759. Epub 2017 Jul 10.

Abstract

A gold-catalyzed cascade reaction of skipped diynes (1,4-diynes) and pyrroles has been developed. This reaction proceeds by the consecutive regioselective hydroarylation of two alkynes with a pyrrole, followed by a 7-endo-dig cyclization to give 1,6-dihydrocyclohepta[b]pyrroles in good yields. The direct synthesis of cyclohepta[b]indoles using indole nucleophiles has also been reported.

Publication types

  • Research Support, Non-U.S. Gov't