Method for preparing cyanophosphonate derivatives from phosphoric anhydride and cyanide
US5858317A · kind A · utility
2Cited by
6References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Dec 23, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/4062
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing cyanophosphonate derivatives involves contacting phosphoric anhydride (P.sub.4 O.sub.10) and a cyanide, preferably in the presence of a Lewis base, in a reaction mixture under sufficient conditions to produce a cyanophosphonate derivative. The cyanophosphonate derivative can be subsequently hydrogenated to produce an aminomethylphosphonate derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.