Highly regio-, (E)-stereo-, and diastereoselective SN2′ addition of organocuprates to chiral allylic cyclic carbonates
作者:Suk-Ku Kang、Dong-Ha Lee、Hyeong-Su Sim、Jong-Suk Lim
DOI:10.1016/s0040-4039(00)60065-5
日期:1993.1
diols with RCu(CN)Li· BF3, RCu(CN)MgBr·BF3, or RMgBr·CuI (cat) in THF at −78 °C proceeded in SN2′ fashion and resulted in the formation of alkylated (E)-allylic alcohols with remarkably high diastereoselectivity. This reaction represents an efficient 1, 3-chirality transfer method.
无环乙烯基二醇的环状碳酸酯与RCu(CN)Li·BF 3,RCu(CN)MgBr·BF 3或RMgBr·CuI(cat)在THF中在-78°C下以S N 2'方式进行反应,导致形成具有极高非对映选择性的烷基化(E)-烯丙基醇。该反应代表一种有效的1、3手性转移方法。