Process for the preparation of an ester
US5679831A · kind A · utility
5Cited by
9References
22Claims
0Family size
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Key dates
| Filing date | Jan 5, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Jan 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of a terminal ester by carbonylation of an internally unsaturated organic compound in the presence of an alcohol, carbon monoxide, palladium, an acid with a pK.sub.a of less than 2 (measured at 18.degree. C. in an aqueous solution) and a bidentate organic phosphorus, antimony or arsenic ligand compound having a bridging group, wherein the bridging group comprises a bis(.eta.-cyclopentadienyl) coordination group of a transition metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.