En Route to (<i>S</i>)-Selective Chemoenzymatic Dynamic Kinetic Resolution of Aliphatic Amines. One-Pot KR/Racemization/KR Sequence Leading to (<i>S</i>)-Amides
作者:Lahssen El Blidi、Malek Nechab、Nicolas Vanthuyne、Stéphane Gastaldi、Michèle P. Bertrand、Gérard Gil
DOI:10.1021/jo900074w
日期:2009.4.3
A one-pot sequential process, involving a radical racemization and an enzymatic resolution, provides access to (S)-amides, from racemic amines, with ee and yields ranging from 78 to 94% and 58 to 80%, respectively.
N-Acyl glycinates as acyl donors in serine protease-catalyzed kinetic resolution of amines. Improvement of selectivity and reaction rate
作者:Malek Nechab、Lahssen El Blidi、Nicolas Vanthuyne、Stéphane Gastaldi、Michèle P. Bertrand、Gérard Gil
DOI:10.1039/b812089g
日期:——
Enzymatic kineticresolution of aliphatic and benzylic aminesleading to (S)-amides was achieved by using alkaline protease as the catalyst and N-octanoyl glycine trifluoroethylester as the acyldonor; enantioselectivity ranged between 4 to 244, while reaction times were dramatically shortened and ranged between 15 min to 6 h.