diastereoselective carbometalation of easily accessible CF3-substituted cyclopropenes is developed with a diastereoselectivity of the addition opposite to the CF3 group. This simple strategy allows the preparation of polysubstituted (up to penta-) cyclopropyl rings possessing two adjacent quaternary carbon stereocenters with excellent diastereoselectivities.
开发了易于获得的 CF 3取代的环
丙烯的区域和非对映选择性碳
金属化反应,其加成与 CF 3基团相反。这种简单的策略允许制备具有两个相邻季碳立构中心的多取代(高达五)环丙基环,具有出色的非对映选择性。