Palladium-Catalyzed Oxidative Cyclization of α-Allenols in the Presence of TBN: Access to 3(2 H)-Furanones

J Org Chem. 2023 Apr 7;88(7):4112-4122. doi: 10.1021/acs.joc.2c02457. Epub 2023 Mar 13.

Abstract

A new palladium-catalyzed oxidative cyclization of α-allenols is described. The readily accessible α-allenols participate in intra-molecular oxidative cyclization in the presence of TBN to grant access to multisubstituted 3(2H)-furanones, which are common motifs in several biologically important natural products and pharmaceuticals.