P,C‐Stereogenic α‐hydroxyl phosphinates or phosphine oxides were prepared from the additions of (RP)‐phosphinate to ketones or (RP)‐phosphine oxide to aldehydes, respectively, catalyzed by bases at room temperature in up to >99:1 diasteromeric ratio (d.r.P/d.r.C) and 99 % yields. The diastereoselectivity was induced by reversible equilibrium and different stabilities between two diastereomers of adduct
P,C-Stereogenicα-羟基
次膦酸酯或氧化膦是由(R P)-
次膦酸酯与酮或(R P)-次膦氧化物与醛分别加成而制得的,在室温下,碱可在> 99的温度下进行催化1:1非对映异构体比率(dr P / dr C)和99%的产率。非对映选择性是由可逆的平衡和两个加合物的非对映异构体之间的不同稳定性引起的,这是由薄荷醇或薄荷基与醛或酮的烷基之间的空间相互作用引起的。