作者:Denise C. Chauret、J.Michael Chong、Qing Ye
DOI:10.1016/s0957-4166(99)00383-3
日期:1999.9
Asymmetric epoxidation of (E)-3-trialkylsilyl-2-propen-1-ols gives the expected epoxides with high enantioselectivity. Ring opening reactions of these epoxides with organocopper reagents furnishes 1,2-diols which are readily cleaved with Pb(OAc)4 to afford α-silyl aldehydes with no detectable loss of stereochemistry.
(E)-3-三烷基甲硅烷基-2-丙烯-1-醇的不对称环氧化得到具有高对映选择性的预期环氧化物。这些环氧化物与有机铜试剂的开环反应提供了1,2-二醇,它们很容易被Pb(OAc)4裂解,得到α-甲硅烷基醛,没有可检测到的立体化学损失。