Method for resolution of steroisomers in multiphase and extractive membrane reactors
US4800162A · kind A · utility
51Cited by
4References
157Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1987 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Apr 1, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00177
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
This invention relates to the resolution of racemic mixtures of optically active compounds, including but not limited to the stereochemical purification of chiral organic esters, amides, carboxylic acids, alcohols, and amines. Novel methods utilizing multiphase and extractive enzyme membrane bioreactors are disclosed that selectively produce pure or substantially purified optically active compounds from achiral precursors or mixtures of isomers in which one or several of those isomers are biologically inactive or otherwise lack desirable characteristics. There are immiscible solvents on either side of the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.