화학공학소재연구정보센터
Journal of the American Chemical Society, Vol.132, No.28, 9558-9560, 2010
Asymmetric Vinylogous Aldol Reaction of Silyloxy Furans with a Chiral Organic Salt
Despite their synthetic significance there is a general lack of asymmetric vinylogous aldol reactions that tolerate variations of both the silyloxy furans and aldehydes. We have developed a new chiral organic catalyst based on a carboxylate-ammonium salt prepared from a thiourea-amine and a carboxylic acid. This new catalyst enabled us to develop an efficient asymmetric vinylogous aldol reaction of unprecedented scope with respect to both 2-trimethylsilyloxy furans and aldehydes.