화학공학소재연구정보센터
Chemistry Letters, Vol.43, No.11, 1782-1784, 2014
Rhodium-catalyzed Intramolecular Dehydrogenatiye Aryl-Aryl Coupling Using Air as Terminal Oxidant
Intramolecular dehydrogenative cyclization involving twofold Csp(2)-H bond cleavages directed by the amino- or carboxy group proceeds smoothly when using a rhodium copper catalyst system under air as the terminal oxidant. A variety of fluorene derivatives can be prepared by the environmentally benign procedure.