Diesters of hexene-1,6-dioic acids produced from 1,2-dialkoxy-3-butenes/co
US5198573A · kind A · utility
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Key dates
| Filing date | Sep 19, 1991 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Sep 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/37
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Diesters of hexene-1,6-dioic acids are prepared by reacting at least one 1,2-dialkoxy-3-butene with carbon monoxide in the presence of a catalytically effective amount of a palladium-based catalyst and a halogen compound, in liquid phase, at elevated temperature and at superatmospheric pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.