Highly efficient dynamic kinetic resolution of secondary aromatic alcohols using a low-cost solid super acid as a racemization catalyst
作者:Gang Xu、Liang Wang、Yongjun Chen、Yongmei Cheng、Jianping Wu、Lirong Yang
DOI:10.1016/j.tetlet.2013.07.016
日期:2013.9
A new, efficient dynamic kinetic resolution (DKR) of secondary aromatic alcohols using self-made solid super acid TiO2/SO42- as a racemization catalyst was developed. Low-cost and easily produced TiO2/SO42- showed excellent racemization activity. When coupled with the lipase, Novozym 435, good biocompatibility was observed, and optically pure aromatic acetate (>99%) was obtained with a high yield.
利用自制的固体超强酸TiO2 / SO42-作为外消旋催化剂,开发了一种新型高效的仲芳族醇动力学动力学拆分方法(DKR)。低成本且易于生产的TiO2 / SO42-具有出色的消旋活性。当与脂肪酶Novozym 435偶联时,观察到良好的生物相容性,并以高收率获得了光学纯的芳族乙酸酯(> 99%)。值得注意的是,该系统可重复使用10次以上,而收率损失很小或产品的对映体过量(ee)值降低。