Resolution of racemic mixtures using polymers containing chiral units
US5739383A · kind A · utility
14Cited by
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26Claims
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Key dates
| Filing date | Nov 26, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Nov 26, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D209/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.