A versatile approach to optically active primary 2-fluoro-2-phenylalkanols through lipase-catalyzed transformations
作者:Olav Goj、Annegret Burchardt、Günter Haufe
DOI:10.1016/s0957-4166(96)00501-0
日期:1997.2
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。