作者:Merritt B Andrus、Davoud Asgari
DOI:10.1016/s0040-4020(00)00425-7
日期:2000.8
Eight new bi-o-tolyl bisoxazolines were made and used as ligands in the copper catalyzed asymmetric allylic oxidation reaction. Three benzoyl tert-butyl peresters, p-nitro, o-iodo, and 2,4,6-trichloro were made and used with cyclohexene and cyclopentene with the ligands complexed to copper(I) hexafluorophosphate (10 mol%). High selectivities (73% ee, 78% yield) were obtained with the nitroperester
制备了八种新的双邻甲苯基双恶唑啉,并用作铜催化的不对称烯丙基氧化反应中的配体。制备三种苯甲酰基叔丁基过酸酯,对-硝基,邻-碘和2,4,6-三氯,并与环己烯和环戊烯一起使用,其配体与六氟磷酸铜(I)络合(10 mol%)。用硝基过酸酯和1a(S,S,S R = Ph)和环己烯获得高选择性(73%ee,78%收率)。对于环戊烯,1c(R = Bn)最佳,ee值为72%,产率为63%。