Enzymatic kinetic resolution of racemic cyanohydrins via enantioselective acylation
作者:Qing Xu、Yongli Xie、Xiaohong Geng、Peiran Chen
DOI:10.1016/j.tet.2009.11.074
日期:2010.1
Enzymatic kinetic resolution of a series of aromatic and aliphatic cyanohydrins in organic media has been investigated. The behavior of potential lipases, molecular sieves, acyl reagent, reaction temperature, and organic solvents on the kinetic resolution was studied. The influence of substrate structure, steric, and electronic nature and position of the aryl substituent on the enantioselectivity was
已经研究了有机介质中一系列芳香族和脂肪族氰醇的酶促动力学拆分。研究了潜在的脂肪酶,分子筛,酰基试剂,反应温度和有机溶剂对动力学拆分的影响。讨论了底物结构,空间和电子性质以及芳基取代基的位置对对映选择性的影响。在优化的反应条件下,大多数研究的化合物均可实现良好的对映选择性。具体地,可以以大于200的动力学对映体比率(E)来分解基板1a,1c,1d,1f,1u。