Preparation of optically active ketones via enantioface-differentiating protonation of prochiral enolates
作者:Kazutsugu Matsumoto、Hiromichi Ohta
DOI:10.1016/s0040-4039(00)92293-7
日期:1991.1
Enantioselective protonation of the prochiral lithium enolate (2) of 2-benzylcyclohexanone (3) was developed. Reaction of 2 with methyl (S)-α-hydroxyisocaproate (15) as a chiral proton source afforded (R)-3 in a high optical yield. This reaction is widely applicable to the preparation of various α-substituted optically active ketones.
开发了2-苄基环己酮(3)的手性烯醇锂(2)的对映选择性质子化。2与作为手性质子源的(S)-α-羟基异己酸甲酯(15)的反应以高光学收率得到(R)-3。该反应可广泛用于制备各种α-取代的光学活性酮。