Room Temperature Ionic Liquids in the Kinetic Resolution of Adrenaline-Type Aminoethanols byBurkholderia cepacia Lipase under Normal and Microwave Conditions
作者:Katri Lundell、Toni Kurki、Maria Lindroos、Liisa T. Kanerva
DOI:10.1002/adsc.200505049
日期:2005.6
The lipase PS-C II (lipase from Burkholderia cepacia immobilized on ceramic particles)-catalyzed acylations of N-acylated 2-amino-1-phenylethanol (rac-1) and N-acylated norphenylephrine (rac-2) have been studied in imidazolium- and pyridinium-based ionic liquids, in tert-butyl methyl ether (TBME) and in their mixtures. Enzymatic chemo- and enantioselectivities in the presence of hydrophobic EMIM⋅NTf2
脂肪酶PS-C II(由脂肪酶洋葱伯克霍尔德菌固定在陶瓷颗粒)的催化的酰化Ñ -acylated 2-氨基-1-苯基乙醇(外消旋- 1)和Ñ -acylated甲苯福林(外消旋- 2)在咪唑鎓进行了研究-和基于吡啶鎓的离子液体,在叔丁基甲基醚(TBME)及其混合物中。在疏水性EMIM·NTf 2和亲水性EMIM·BF 4存在下,使用高底物浓度对酶的化学选择性和对映选择性进行了更详细的研究。rac- 1和rac-的制备规模动力学拆分在EMIM·NTf 2与TBME(2:1)的混合物中用丁酸乙烯酯2(均为0.45 M)分别花费9和27个小时。微波辅助的酰化外消旋- 1和外消旋2在EMIM⋅NTf存在2在正常条件下类似地进行到反应。