Process for producing dicyanonorbornane and zerovalent nickel complex catalyst
US8183404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2007 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jan 10, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/42
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is to provide a process for producing dicyanonorbornane characterized by causing hydrogen cyanide to undergo addition reaction with cyanonorbornene (bicyclo[2.2.1]-5-heptene-2-carbonitrile) in the presence of a zerovalent nickel complex catalyst which is produced by using a phosphite represented by P(x)(y)(z) (wherein P is a phosphorus atom, and x, y and z are each OR, where R represents an aryl group having not more than 18 carbon atoms) as a ligand to reduce a nickel halide with at least one metal selected among zinc, cadmium, beryllium, aluminum, iron and cobalt, wherein the phosphite is one which has a phosphate content of 1.0 weight % or lower based on the whole phosphite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.