作者:Changgui Zhao、Fangyi Li、Jian Wang
DOI:10.1002/anie.201508205
日期:2016.1.26
The dynamic kinetic resolution of 6‐hydroxypyranones with enals or alkynals through an asymmetric redox esterification is catalyzed by a chiral N‐heterocyclic carbene. The resulting esters are obtained in good to high yields and with high levels of enantio‐ and diastereocontrol. The reaction products are further derivatized to obtain functionalized sugar derivatives and natural products.
手性N-杂环卡宾催化6-羟基吡喃酮与烯类或炔类化合物通过不对称氧化还原酯的动力学动力学拆分。所得酯的收率高,收率高,对映和非对映异构控制水平也很高。将反应产物进一步衍生以获得官能化的糖衍生物和天然产物。