Microbiological Transformations 60. Enantioconvergent Baeyer-Villiger Oxidationvia a Combined Whole Cells and Ionic Exchange Resin-Catalysed Dynamic Kinetic Resolution Process
作者:Maria-Concepción Gutiérrez、Roland Furstoss、Véronique Alphand
DOI:10.1002/adsc.200505048
日期:2005.6
A dynamic kinetic resolution process was applied to an enantioconvergent microbial Baeyer–Villiger oxidation of benzyloxycyclopentanone, rac-1. This was achieved by combining a whole cell-based kinetic resolution and an anion exchange resin-catalysed in situ racemisation. Several resins were screened according to their capacity to catalyse the racemisation of 1. As compared to our previous results
将动态动力学拆分过程应用于对映收敛微生物,苄氧基环戊酮,rac - 1的Baeyer-Villiger氧化。这是通过将基于全细胞的动力学拆分和阴离子交换树脂催化的原位外消旋相结合而实现的。根据它们催化1消旋化的能力筛选了几种树脂。与我们之前的结果相比,生物转化为1时弱碱性Lewatit MP62的存在使可用底物浓度提高了三倍,并提供了几乎对映纯的内酯(R)-2(分离出的)制备的(97%ee)的产率高于84%。将Noyori模型应用于该反应,并确定动力学常数。