Enantioselective Allylation of Aldehydes Using Tartrate Ester Modified Allylsilanes
作者:Luo Cheng Zhang、Hideki Sakurai、Mitsuo Kira
DOI:10.1246/cl.1997.129
日期:1997.2
Tartrate-ester modified allylsilanes, 2-allyl-1,3,2-dioxasilolane-4,5-dicarboxylic esters, (1), were found to serve as useful reagents for regiospecific and stereoselecive allylation of aldehydes. Reactions of 1 with achiral aldehydes without any catalyst gave the corresponding homoallyl alcohols in good yields (70-90%) with the ee values up to 80%.
研究发现,酒石酸酯修饰的烯丙基硅烷、2-烯丙基-1,3,2-二氧硅烷-4,5-二羧酸酯(1)可作为有用的试剂,用于醛的区域特异性和立体选择性烯丙基化。在不使用任何催化剂的情况下,1 与非手性醛反应生成相应的均烯丙基醇,收率高达 70-90%,ee 值高达 80%。