Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
RESOLUTION OF RACEMIC MIXTURES USING POLYMERS CONTAINING CHIRAL UNITS
Document Type and Number:
WIPO Patent Application WO1998008787
Kind Code:
A3
Abstract:
Described herein is a novel process to resolve a racemic compound into its optically active isomers without need for chemical transformation such as salt formation. The process advantageously utilizes polymers containing chiral moieties in their repeat units as well as exhibiting critical solution temperature behavior in a suitable solvent. An embodiment describes the resolution of tryptophan.

Inventors:
YOON HYUN N
LU MENGSHI
OGATO NAOYA
Application Number:
US9713874W
Publication Date:
October 03, 2002
Filing Date:
August 07, 1997
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HOECHST CELANESE CORPORATION
International Classes:
C07B57/00; C07C227/34; C07D209/20; (IPC1-7): C07B57/00; C07C227/34; C07D209/20
Domestic Patent References:
WO1987000165A11987-01-15
Foreign References:
US4914159A1990-04-03
US4931525A1990-06-05
EP0225503A11987-06-16
CH671572A51989-09-15
US4980065A1990-12-25
Download PDF: