Ru-catalyzed decarboxylative cyclization of mandelic acids with acrylates: facile access to the phthalide skeleton†
Abstract
A new protocol for Ru-catalyzed decarboxylative cyclization of mandelic acids with acrylates was established, which allows efficient construction of the phthalide skeleton. Interestingly, this reaction underwent a decarboxylative process, in which only divinylation was observed, and the subsequent cyclization led to the formation of phthalides.