Nickel/photoredox-catalyzed enantioselective arylation of α-chloro thioesters

Chem Commun (Camb). 2023 Nov 7;59(89):13355-13358. doi: 10.1039/d3cc04067d.

Abstract

The first dual nickel/photoredox-catalyzed enantioselective reductive cross-coupling of racemic α-chloro thioesters with aryl iodides has been developed. This strategy avoids the need for organometallic reagents or stoichiometric metal reductants. This reaction could tolerate a wide range of substrate scope with excellent reactivity and high enantioselectivities (up to 91% ee) to access a variety of chiral α-aryl thioesters. The synthetic utility of the corresponding α-aryl thioesters is demonstrated. Furthermore, we explored the mechanism of such an enantioselective radical cross-coupling process.