Ni-Catalyzed Enantioselective Allylic Alkylation of H-Phosphinates

Org Lett. 2021 Nov 19;23(22):8683-8687. doi: 10.1021/acs.orglett.1c02986. Epub 2021 Nov 4.

Abstract

The asymmetric synthesis of P-stereogenic phosphinates through allylic alkylation of H-phosphinates has been developed. With H-phosphinates and allylic acetates as the starting materials, a variety of allylic P-chiral phosphinates were accessed in high enantioselectivities of up to 92% ee and generally high yields. In addition, a further study demonstrated the applicability of this protocol, including the scale-up synthesis and facile transformation of chiral products from phosphinates to phosphine oxides with organolithium reagents under mild reaction conditions.