Transaminases as suitable catalysts for the synthesis of enantiopure β,β-difluoroamines
作者:Marina García-Ramos、Iván Lavandera
DOI:10.1039/d1ob02346b
日期:——
Transaminases have shown the ability to catalyze the amination of a series of aliphatic and (hetero)aromatic α,α-difluorinated ketones with high stereoselectivity, thus providing the corresponding β,β-difluoroamines in high isolated yields (55–82%) and excellent enantiomeric excess (>99%). It was also observed that these activated substrates could be quantitatively transformed by employing a small
转氨酶已显示出催化一系列脂肪族和(杂)芳香族 α,α-二氟代酮胺化的能力,具有高立体选择性,从而以高分离产率 (55–82%) 提供相应的 β,β-二氟胺和优异的对映体过量 (>99%)。还观察到,这些活化的底物可以通过使用少量摩尔过量的胺供体来定量转化,因为这种胺化过程在热力学上是有利的。选定的转化可以放大到 500 mg,显示了这种方法的稳健性。