Enantioselective reductive allylic alkylation enabled by dual photoredox/palladium catalysis

Chem Commun (Camb). 2023 Jan 26;59(9):1153-1156. doi: 10.1039/d2cc06705f.

Abstract

A dual photoredox/palladium catalyzed regio- and enantioselective reductive cross-coupling of allylic acetates with tertiary/secondary alkyl bromides has been achieved, and Hantzsch ester is used as a homogeneous organic reductant. This straightforward protocol enables the stereoselective construction of C(sp3)-C(sp3) bonds under mild reaction conditions. Mechanistic studies suggest that this reaction involves radical pathways and a chiral Pd complex enables the control of the regio- and enantioselectivities.