A Convenient Palladium-Catalyzed Carbonylative Synthesis of Benzofuran-2(3 H)-ones with Formic Acid as the CO Source

Chem Asian J. 2016 Sep 6;11(17):2453-7. doi: 10.1002/asia.201600873. Epub 2016 Aug 19.

Abstract

A general and convenient palladium-catalyzed carbonylation procedure for the synthesis of benzofuran-2(3 H)-ones from phenols and aldehydes has been developed. With formic acid as the CO source, a variety of benzofuran-2(3 H)-ones were obtained in moderate to good yields.

Keywords: CO-free; carbonylation; cascade reaction; heterocycle synthesis; palladium.