Process for separating isomers of disubstituted benzenes and agents to be used therefor
US5177302A · kind A · utility
6Cited by
2References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 22, 1991 |
| Grant date | Jan 5, 1993 |
| Priority date | — |
| Expiry date | May 22, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/395
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention is concerned with a process for separating isomers of disubstituted benzenes, wherein a mixture of isomers of disubstituted benzenes is contacted with a substituted cyclodextrin to form inclusion complexes, and desired isomers are recovered therefrom in a highly selective manner. The invention also provides substituted cyclodextrins suited for use in the process. Substituted cyclodextrins used in the process can be recovered and used repeatedly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.