Enhanced selectivity in Novozym 435 catalyzed kinetic resolution of secondary alcohols and butanoates caused by the (R)-alcohols
作者:Elisabeth Egholm Jacobsen、Erik van Hellemond、Anders Riise Moen、Lucia Camino Vazquez Prado、Thorleif Anthonsen
DOI:10.1016/j.tetlet.2003.09.105
日期:2003.11.10
In esterifications of secondary alcohols catalyzed by immobilized lipase B from Candida antarctica (Novozym 435) the E-values decreased during the reaction. Hydrolysis of the corresponding butanoates showed the opposite effect. When an enantiopure (R)-alcohol, related but different, was added to the transesterification reaction, the E-value was significantly enhanced.
在固定化来自南极假丝酵母的脂肪酶B (Novozym 435)催化的仲醇的酯化反应中,E值降低。相应的丁酸酯的水解显示相反的作用。当将相关但不同的对映体(R)-醇加入酯交换反应中时,E-值显着提高。