Synthesis of 7-Vinylflavone and 7-Aminoflavone by Palladium-Catalyzed Coupling Reactions

Abstract

Palladium-catalyzed cross-coupling reactions of flavone triflates 2a–c, 4a with tetravinyltin give the corresponding vinylflavones 5a–d, whereas reactions with benzophenone imine, followed by cleavage, afford the corresponding aminoflavone.