Palladium-catalyzed decarboxylative O-allylation of phenols with γ-methylidene-δ-valerolactones†
Abstract
A novel palladium-catalyzed decarboxylative O-allylation of phenols was developed, in which a γ-methylidene-δ-valerolactone (GMDV) was found to be an efficient and selective allylation reagent, affording the target allyl phenyl ethers in up to 92% yields under mild conditions.