Covalent Immobilization of <i>Pseudomonas stutzeri</i> Lipase on a Porous Polymer: An Efficient Biocatalyst for a Scalable Production of Enantiopure Benzoin Esters under Sustainable Conditions
作者:Antonio Aires-Trapote、Pilar Hoyos、Andrés R. Alcántara、Aitana Tamayo、Juan Rubio、Angel Rumbero、María J. Hernáiz
DOI:10.1021/op500326k
日期:2015.7.17
up of this KR process permitting a further rise in the catalytic efficiency. Finally, the dynamic kinetic resolution of benzoin (DKR) was carried out by the combination of the immobilized lipase and a ruthenium catalyst (Shvo’s catalyst) in 2-MeTHF, reaching conversions up to 90%, maintaining its excellent enantioselectivity during six catalytic cycles.
斯氏假单胞菌脂肪酶的固定化首次描述了通过与多孔聚合物共价键合的(脂肪酶TL)。固定化酶的最佳pH和热稳定性进行了表征,并在对称和不对称安息香(1,2-二芳基-2-羟基乙酮结构)的动力学拆分(KR)中测试了其催化效率。反应在绿色溶剂2-MeTHF中进行,达到最大转化率和对映体过量,由于可重复使用催化剂,因此生产率显着提高。而且,固定化使得该KR方法的发展得到充分的扩大,从而允许催化效率的进一步提高。最后,结合固定化脂肪酶和钌催化剂(Shvo's催化剂)在2-MeTHF中进行安息香(DKR)的动态动力学拆分,