Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
US5981772A · kind A · utility
38Cited by
6References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
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 nitrites and to the liquid phase process of isomerization of the nitrites to, among other things, 3- and/or 4-monoalkene linear nitrites. 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.