Method of making amphetamine
US7705184B2 · kind B2 · utility
8Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2009 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | May 15, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C211/27
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method in which a crude chlorinated product of a phenylpropanolamine, preferably prepared by reacting thionyl chloride with the phenylpropanolamine, is purified by contacting an aqueous solution of the crude product with carbon. The carbon-treated solution of the crude chlorinated product of a phenylpropanolamine is catalytically hydrogenated to the corresponding amphetamine derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.