The Reactions of Optically Pure Menthyloxymethylphenylphosphine-Borane with Organolithium Reagents
作者:Toshiyuki Oshiki、Tsuneo Imamoto
DOI:10.1246/bcsj.63.3719
日期:1990.12
The reactions of (Rp)-menthyloxymethyl-phenylphosphine-borane with several organolithium reagents are described. Less sterically hindered reagents such as m-anisyllithium and p-anisyllithium react with the phosphine-borane to afford the corresponding substitution products with high stereochemical integrity with inversion of configuration. On the other hand, o-substituted phenyllithiums lead to products
描述了 (Rp)-薄荷氧基甲基-
苯基膦-
硼烷与几种
有机锂试剂的反应。空间位阻较小的试剂,如间茴香基
锂和对茴香基
锂与膦
硼烷反应,得到相应的取代产物,具有高立体
化学完整性和构型反转。另一方面,邻取代的
苯基锂导致产品具有非常低的光学纯度。