Process for preparing cephalosporin intermediates
US4539422A · kind A · utility
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2References
5Claims
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Assignee
Inventor
Key dates
| Filing date | Feb 22, 1985 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Feb 22, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C255/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a C.sub.3 -C.sub.8 alkyl cyanoformate derivative employing a liquid-liquid phase transfer catalysis conducted at low temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.