resolutions of (±)-1-acetoxy-2-fluoro-2-phenylalkanes 1 by enzymatic hydrolysis and of (±)-2-fluoro-2-phenylpropanol 2a by lipase-catalyzed acetylation are described for the first time. Hydrolysis of (±)-1 with lipase Amano PS (Pseudomonas cepacia) provided both the optically active acetates (−)-1 and the corresponding primary alcohols (−)-2 with high enantiomeric excess. (R)-enantiopreference was
首次描述了通过酶促
水解的(±)-1-乙酰氧基-2-
氟-2-苯基链
烷烃1和通过
脂肪酶催化的乙酰化的(±)-2-
氟-2-苯基
丙醇2a的动力学拆分。用
脂肪酶Amano PS (PSeudomonas cepacia)
水解(±)-1可提供旋光性
乙酸酯(-)- 1和相应的伯醇(-)- 2,其对映体过量较高。与未
氟化的母体化合物(±)-2-苯基
丙醇3相比,(R)-对映体优选的是(±)-2-
氟-2-苯基
丙醇2a的乙酰化,其对映选择性和转化率更高。