Abstract An efficient and highly regio-and stereoselctive Pd-catalyzed β-arylation method for the formation of β-aryl allylic alcohols, employing aryl iodides, 1-bromo-2-iodobenzenes, and 2-bromobezaldehydes as coupling partners, is presented. The β-aryl allylic alcohols formed in this Pd-catalyzed transformation is unexpected under conventional Jeffery conditions without the assistance of silver salt. It is proposed that the reaction is substrate ...