Palladium‐Catalyzed Allylic Arylation of Allylic Ethers with Arylboronic Acids Using Hydrazone Ligands

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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/H2O. Using this catalyst, eugenol was also synthesized from allyl phenyl ether with (4‐hydroxy‐3‐methoxyphenyl)boronic acid pinacol ester.

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