The reaction was found to be remarkably accelerated by the addition of a catalytic amount of a bidentate phosphine⋅silver(I) complex. Use of the BINAP⋅silver triflate (AgOTf) complex as the chiral co-catalyst resulted in the formation of optically active aldol products possessing a chiral tertiary carbon with up to 93% ee. This catalytic method was further applied to the asymmetric reaction of diketene
以二甲基二
丁基锡为催化剂,实现了
三氯乙酸烯基酯与α-
酮酸酯的新型羟醛反应。发现通过加入催化量的双齿膦膦·
银(I)配合物,反应显着加速。BINAP·
三氟甲磺酸银(AgOTf)配合物作为手性助催化剂的使用导致形成了具有手性叔碳且ee高达93%的旋光性醇醛产品。将该催化方法进一步应用于双烯酮与苯甲酰基
甲酸甲酯的不对称反应。