Hydrocyanation of diolefins and isomerization of nonconjugated 2-alkyl-3-monoalkenenitriles
US5821378A · kind A · utility
56Cited by
46References
41Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 28, 1995 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Nov 28, 2015 |
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 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. The invention also provides a novel method of making phosphorochloridite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.