Application of a one-pot lipase resolution strategy for the synthesis of chiral γ- and δ-lactones
作者:Ahmed Kamal、Mahendra Sandbhor、Ahmad Ali Shaik
DOI:10.1016/s0957-4166(03)00281-7
日期:2003.6
one-pot method was illustrated by the oxidation of these chiral diols to respective chiral γ-butyrolactone and δ-lactones. Lipase from Pseudomonas cepacia, immobilized on ceramic afforded the product with high enantiomeric excess in good yields under mild reaction conditions. This approach has been used to develop a convenient enantioselective route for several γ- and δ-lactones using achiral and corresponding
描述了成功地将一锅成功地将γ-酮酸酯,δ-酮酸酯和内酯还原为相应的1,4-和1,5-二醇,然后进行了脂肪酶催化的动力学拆分,并进行了水解,得到了光学活性的二醇。通过将这些手性二醇氧化为相应的手性γ-丁内酯和δ-内酯来说明这种一锅法的合成效用。固定在陶瓷上的洋葱假单胞菌脂肪酶在温和的反应条件下以高收率提供了高对映体过量的产物。该方法已被用于使用非手性和相应的外消旋原料为几种γ-和δ-内酯开发一条便利的对映选择性途径。