Enantioselective Synthesis of Trifluoromethyl α,β-Unsaturated δ-Lactones via Vinylogous Aldol-Lactonization Cascade

J Org Chem. 2018 Oct 19;83(20):12440-12448. doi: 10.1021/acs.joc.8b01672. Epub 2018 Sep 27.

Abstract

The novel vinylogous aldol-lactonization cascade of alkylidene oxindole with trifluoromethyl ketones is presented. The reaction, catalyzed by a bifunctional tertiary amine, provides an efficient application of the vinylogous reactivity of alkylidene oxindoles for the preparation of enantioenriched trifluoromethylated α,β-unsaturated δ-lactones.

Publication types

  • Research Support, Non-U.S. Gov't