ω-Transaminases as efficient biocatalysts to obtain novel chiral selenium-amine ligands for Pd-catalysis
作者:Leandro H. Andrade、Alexandre V. Silva、Priscila Milani、Dominik Koszelewski、Wolfgang Kroutil
DOI:10.1039/b920946h
日期:——
ω-Transaminases have been evaluated as biocatalysts in the reductive amination of organoselenium acetophenones to the corresponding amines, and in the kinetic resolution of racemic organoselenium amines. Kinetic resolution proved to be more efficient than the asymmetric reductive amination. By using these methodologies we were able to obtain both amine enantiomers in high enantiomeric excess (up to
在有机硒苯乙酮还原胺化为相应的胺以及外消旋有机硒胺的动力学拆分中,ω-转氨酶已被评估为生物催化剂。动力学拆分被证明比不对称还原胺化更有效。通过使用这些方法,我们能够获得高对映体过量(最高99%)的两种胺对映体。所获得的光学纯衍生物邻硒-1-苯乙胺在钯催化的不对称烷基化反应中,将其作为配体进行评估,得到的烷基化产物的ee最高可达99%。