Enantioselective Radical Hydroacylation of Enals with α-Ketoacids Enabled by Photoredox/Amine Cocatalysis

Org Lett. 2019 Feb 15;21(4):913-916. doi: 10.1021/acs.orglett.8b03840. Epub 2019 Jan 29.

Abstract

A photoredox/amine-cocatalyzed enantioselective radical hydroacylation of enals with α-ketoacids is described. Acyl radicals generated from α-ketoacids act as the acylation reagent with the iminium ions. This strategy provides an efficient way to access synthetically challenging 1,4-dicarbonyl compounds in an enantioselective manner. The reactions of various enals with α-ketoacids show the generality and limitations of this method.

Publication types

  • Research Support, Non-U.S. Gov't