One-pot Wittig olefination–Suzuki reaction—the compatibility of conjugated phosphoranes in Pd(0) catalysed C–C-bond forming reactions

Abstract

Formylareneboronic acids and formylhetareneboronic acids can be subjected to a combined Suzuki coupling–Wittig olefination in their reaction with arene halides and conjugated phosphoranes. Also, the transformations can be carried out under ultrasonication in a biphasic medium of aq. Na₂CO₃ and hexane–ether, where phosphonium salts are used as the starting materials.