Abstract Unsymmetrical 1, 3-diarylpropenes were synthesized in good to high yields by the palladium-catalyzed allylic arylation of allylic ethers, such as a cinnamyl phenyl ether, with a variety of arylboronic acids using a hydrazone 1a–Pd (OAc) 2 system in DMAc/H 2 O. Using this catalyst, eugenol was also synthesized from allyl phenyl ether with (4-hydroxy-3- methoxyphenyl) boronic acid pinacol ester.