The hydrogenation of (E)-2-(trifluoromethyl)alk-2-en-1-ols catalyzed by Ru-2, 2'-bis(diphynylphosphino)-1, 1'-binaphthyl (Ru-BINAP) and Rh-BINAP was carried out with good enantiomeric excess (71-83% ee). Ru-BINAP-catalyzed hydrogenation converted 2-(trifluoromethyl)acrylic acid to the corresponding saturated acid whose esterification and reduction provided optically active 2-(trifluoromethyl)propan-1-ol in 80% ee.
在Ru-2, 2'-双(
二苯基膦)-1, 1'-联
萘(Ru-BINAP)和Rh-BINAP的催化下,对(E)-2-(三
氟甲基)-2-烯-1-醇进行了加氢反应,获得了良好的对映体过量(ee为71-83%)。在Ru-BINAP的催化下,2-(三
氟甲基)
丙烯酸被转化为相应的饱和酸,其酯化和还原反应产生了光学活性2-(三
氟甲基)-1-
丙醇,ee为80%。