Invention Grant
US07767811B2 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids
有权
手性2-取代和3-取代羧酸的动力学分辨率
- Patent Title: Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids
- Patent Title (中): 手性2-取代和3-取代羧酸的动力学分辨率
-
Application No.: US11447237Application Date: 2006-06-05
-
Publication No.: US07767811B2Publication Date: 2010-08-03
- Inventor: Li Deng , Jianfeng Hang , Liang Tang
- Applicant: Li Deng , Jianfeng Hang , Liang Tang
- Applicant Address: US MA Waltham
- Assignee: Brandeis University
- Current Assignee: Brandeis University
- Current Assignee Address: US MA Waltham
- Agency: Foley Hoag LLP
- Agent Dana M. Gordon
- Main IPC: C07D453/04
- IPC: C07D453/04 ; C07D453/00 ; C07C59/11 ; C07D413/12 ; C07C229/12

Abstract:
One aspect of the present invention relates to a method for the kinetic resolution of racemic and diastereomeric mixtures of chiral compounds. The critical elements of the method are: a non-racemic chiral tertiary-amine-containing catalyst; a racemic or diastereomeric mixture of a chiral substrate, e.g., a cyclic carbonate or cyclic carbamate; and a nucleophile, e.g., an alcohol, amine or thiol. A preferred embodiment of the present invention relates to a method for achieving the kinetic resolution of racemic and diastereomeric mixtures of derivatives of α- and β-amino, hydroxy, and thio carboxylic acids. In certain embodiments, the methods of the present invention achieve dynamic kinetic resolution of a racemic or diastereomeric mixture of a substrate, i.e., a kinetic resolution wherein the yield of the resolved enantiomer or diastereomer, respectively, exceeds the amount present in the original mixture due to the in situ equilibration of the enantiomers or diastereomers under the reaction conditions prior to the resolution step.
Public/Granted literature
- US20060293536A1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids Public/Granted day:2006-12-28
Information query