Rhodium-Catalyzed Enantioselective Hydrosilylation of 1,1-Disubstituted Enamides

Org Lett. 2024 Dec 20;26(50):10684-10689. doi: 10.1021/acs.orglett.4c03491. Epub 2024 Dec 8.

Abstract

Catalytic hydrosilylation of 1,1-disubstituted enamides is one of the most challenging and synthetically useful processes in organosilicon chemistry and asymmetric catalysis. Herein, we report a rhodium-catalyzed enantioselective hydrosilylation of α-arylenamides with substituted hydrosilanes with the aid of chiral P-ligand, including newly developed spirophosphite ligands, giving various chiral β-silylated amides in excellent yields with good to excellent enantioselectivities (98:2 er after recrystallization). In addition, chiral β-silylated amines can be obtained by further functionalization of the hydrosilylation product.