Preparation of nitriles from ethylenically unsaturated compounds
US8697902B2 · kind B2 · utility
1Cited by
2References
12Claims
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Key dates
| Filing date | Jun 5, 2009 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Feb 26, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the hydrocyanation of a hydrocarbon-based compound having at least one site of ethylenic unsaturation into a nitrile compound includes reaction thereof, in a liquid medium, with hydrogen cyanide in the presence of a catalyst containing a metal element selected from among the transition metals and an organophosphorus ligand, wherein the organophosphorus ligand is a compound of formula (I):The subject process is particularly useful for the synthesis of adiponitrile from butadiene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.