Palladium(II)-catalyzed Michael-type addition reactions using aryltin compounds

Article abstract of DOI:10.1246/bcsj.73.2149

A variety of aryltin compounds can be employed for Michael-type hydroarylation reactions to α,β-unsaturated ketones and aldehydes in the presence of a catalytic amount of palladium(II) salt in acetic acid under air. Each reaction is much accelerated in the presence of a soluble metal chloride such as LiCl, MgCl₂, and CaCl₂. It is found that slightly fewer than four aryl groups of tetraaryltins can be transferred to the products in this arylation.