Process for the preparation of dialkyl malonates
US5026900A · kind A · utility
3Cited by
7References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | May 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of alkyl malonates by carbonylation of chloroacetate in the presence of a carbonyl source, a carbonylation catalyst, such as chromium carbonyl and an aliphatic alcohol, this reaction being carried out in a two-phase liquid medium. A process for recycling the catalyst also forms part of the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.