The reaction of PhCF(CN)COCl 2b with 3,3-dimethylbutan-2-ol 5 was found to proceed more than 500 times faster than that of PhCCF3(OMe)COCl (MTPAâCl)1b, suggesting that the CFPA method should potentially lead to much less kinetic resolution than the currently much-used MTPA method in enantiometric excess determinations.
PhCF(CN)COCl与
3,3-二甲基丁醇的反应速度被发现比PhCCF3(OMe)COCl(M
TPA–Cl)的反应快超过500倍,这表明CFPA方法在对映体过量测定中有可能导致的动力学分辨率远低于目前广泛使用的M
TPA方法。