Wang Bin, Wong O Andrea, Zhao Mei-Xin, Shi Yian
Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
J Org Chem. 2008 Dec 19;73(24):9539-43. doi: 10.1021/jo801576k.
Various 1,1-disubstituted terminal olefins have been investigated for asymmetric epoxidation using chiral ketone catalysts. Up to 88% ee has been achieved with a lactam ketone, and a planar transition state is likely to be a major reaction pathway.
已使用手性酮催化剂对各种1,1-二取代末端烯烃进行不对称环氧化研究。使用内酰胺酮时,对映体过量值(ee)高达88%,平面过渡态可能是主要反应途径。