Pd-catalyzed desulfitative arylation for the synthesis of 2,5-diarylated oxazole-4-carboxylates using dioxygen as the terminal oxidant

Org Biomol Chem. 2017 Oct 18;15(40):8504-8507. doi: 10.1039/c7ob01912b.

Abstract

A desulfitative arylation of 2-aryloxazole-4-carboxylate with sodium arylsulfinates under an oxygen (O2) atmosphere to afford 2,5-diarylated oxazole-4-carboxylates is described. This transformation provides a novel approach for the utilization of sodium arylsulfinates as the aryl source and O2 as the sole oxidant.