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
Enzymatickineticresolution 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 kineticresolution was studied. The influence of substrate structure, steric, and electronic nature and position of the aryl substituent on the enantioselectivity was
Enzymatic resolution of optically active aliphatic cyanohydrins
作者:Liisa T. Kanerva、Eero Kiljunen、Tuomas T. Huuhtanen
DOI:10.1016/s0957-4166(00)80102-0
日期:1993.11
Enantioselective acylation of cyanohydrins 1a-9a by PPL catalysis and deacylation of propionates 1b-9b by CCL catalysis in toluene proceed from good (E 15–20) to excellent (E > 30) enantioselectivity. A solvent has a clear effect on enzymatic enantioselectivity.