Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
US6120700A · kind A · utility
21Cited by
7References
2Claims
0Family size
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Key dates
| Filing date | Aug 12, 1999 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Aug 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Improved liquid phase process useful in the hydrocyanation of diolefinic compounds to produce nonconjugated acyclic nitriles and to the liquid phase process of isomerization of the nitrites to, among other things, 3- and/or 4-monoalkene linear nitriles. The improvement involves conducting the process in the presence of zero-valent nickel and a multidentate phosphite ligand. Novel multidentate phosphite ligands and catalyst precursor compositions made therefrom are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.