A facile and convenient chemoenzymatic synthesis of optically active O-(4-methoxyphenyl)-glycidol and 1,2-diacyl-sn-glycerol
作者:Ahmed Kamal、Mahendra Sandbhor、Ahmad Ali Shaik、M. Shaheer Malik
DOI:10.1016/j.tetasy.2005.03.026
日期:2005.5
A convenient preparation of the (R)- and (S)-enantiomers of O-(4-methoxyphenyl)-glycidol by a one-pot reduction of ketone 3 and in situ lipase mediated resolution is described. Activated moist aluminium oxide in the presence of Pseudomonas cepacia lipase immobilized on ceramic particles (PS-C) has been found effective for the transesterification leading to a high degree of enantioselectivity. These
描述了通过一锅还原酮3和原位脂肪酶介导的拆分方便地制备O-(4-甲氧基苯基)-缩水甘油的(R)-和(S)-对映体的方法。已经发现在固定在陶瓷颗粒(PS-C)上的洋葱假单胞菌脂肪酶存在下的活化的湿氧化铝可有效地进行酯交换反应,从而导致高度的对映选择性。这些手性缩水甘油被进一步用作手性前体,用于合成生物学上重要的1,2- O-二酰基-sn-甘油在温和的反应条件下。与先前报道的方法相比,本方法易于以高对映选择性合成手性糖醇。