Hydrocyanation processes and multidentate phosphite ligand and nickel catalyst compositions therefor
US6171996A · kind A · utility
55Cited by
10References
5Claims
0Family size
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Key dates
| Filing date | Jul 13, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jul 13, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for hydrocyanation of an aliphatic monoethylenically unsaturated compound, in which the ethylenic double bond is not conjugated to any other unsaturated group in the molecule, or a monoethylenically unsaturated compound in which the ethylenic double bond is conjugated to an ester group, which process uses a catalyst composition comprising a zero-valent nickel and a multidentate phosphite ligand in the presence of a Lewis acid promoter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.