CF3‐substituted 1,3‐diols were stereoselectively prepared in excellent enantiopurity and high yield from CF3‐substituted diketones by using an ansa‐ruthenium(II)‐catalyzed asymmetric transfer hydrogenation in formic acid/triethylamine. The intermediate mono‐reduced alcohol was also obtained in very high enantiopurity by applying milder reaction conditions. In particular, CF3C(O)‐substituted benzofused
通过在
甲酸/
三乙胺中使用an
钌(II)催化不对称转移氢化反应,从CF 3取代的二酮中立体选择性地制备了CF 3取代的1,3
-二醇,具有优异的对映纯度和高收率。通过应用较温和的反应条件,还可以以很高的对映体纯度获得中间体一元还原醇。特别是CF 3 C(O)取代的苯并稠合环酮在还原过程中经历了一次或两次动态动力学拆分。