作者:Atsunori Mori、Isao Arai、Hisashi Yamamoto、Hisao Nakai、Yoshinobu Arai
DOI:10.1016/s0040-4020(01)88107-2
日期:1986.1
Asymmetric Simmons-Smith reactions of α,β-unsaturated acetals derived from chiral dialkyl tartrate or (2R,4R)-2,4-pentanediol are described. Treatment of the acetal with diethylzinc and methylene iodide gives a cyclopropane with high diastereoselectivity. The acetal group is readily transformed to the aldehyde or the ester group. In addition, the method is successfully applied to the enantioselective
描述了衍生自手性酒石酸二烷基酯或(2R,4R)-2,4-戊二醇的α,β-不饱和缩醛的不对称Simmons-Smith反应。用二乙基锌和二碘甲烷处理缩醛得到具有高非对映选择性的环丙烷。缩醛基很容易转化为醛或酯基。此外,该方法已成功应用于对白三烯生物合成的稳定和选择性抑制剂5,6-甲醇-真三烯A 4的对映选择性合成。