Functional-Group-Tolerant Pd-Catalyzed Carbonylative Negishi Coupling with Aryl Iodides

J Org Chem. 2023 Dec 1;88(23):16633-16638. doi: 10.1021/acs.joc.3c00948. Epub 2023 Nov 15.

Abstract

A chemoselective Pd-mediated carbonylative Negishi-type catalytic protocol for the synthesis of (hetero)aryl ketones is reported. The protocol employs the PEPPSI-IPr precatalyst and CO gas at atmospheric pressure (balloon) to foster the carbonylative coupling between diverse C(sp3)-hybridized organozinc reagents and a broad range of aryl iodides, including substrates carrying aldehyde, aniline, phenol, or carboxylic acid groups, and heteroaryls.