Abstract
A carboxylate-assisted palladium-catalyzed Mizoroki-Heck arylation of electron-deficient internal alkenes is described herein. This protocol utilized a free carboxylic acid as the directing group for regio- and stereoselective Mizoroki-Heck arylation of β-cyclohexadienyl acrylates and styrenes with various aryl iodides. The synthetic application has been exhibited by decarboxylative aromatization and iodolactonization/hydrolysis of the resulting polyenes providing trisubstituted alkenes and structurally diverse hydroxyl lactones. Additionally, mechanistic studies have been performed to elucidate the reaction outcome of regio- and stereoselectivity.
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