Institute of Microbial Chemistry, Tokyo, Kamiosaki 3-14-23, Shinagawa-ku, Tokyo 141-0021, Japan.
Org Lett. 2010 Sep 17;12(18):4098-101. doi: 10.1021/ol101691p.
A copper(I)-chiral secondary diamine (L-e) complex catalyzes an enantioselective conjugate boration of β,β-disubstituted enones in high yields and up to 99% ee. Product chiral tertiary organoboronates can be converted to enantiomerically enriched cross-aldol products between ketones without any racemization.
一种铜(I)-手性仲二胺(L-e)配合物以高收率和高达 99%的对映选择性催化 β,β-二取代烯酮的对映选择性共轭硼化反应。产物手性叔基有机硼酸盐可以在没有任何外消旋化的情况下转化为酮之间对映体富集的交叉羟醛缩合产物。