Preparation method for solid powder of a carbamic acid derivative
US9126903B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Dec 11, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C269/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present application relates to a preparation method for solid powder of a carbamic acid derivative, which includes reacting an amine derivative with carbon dioxide at a temperature in a range of from about −30° C. to about 500° C. and at a pressure in a range of from about 0.3 MPa to about 100 MPa. In addition, the present disclosure relates to a reduction method for solid powder of a carbamic acid derivative to an amine derivative and carbon dioxide, which includes dissolving solid powder of the carbamic acid derivative prepared in a solvent; refluxing the carbamic acid derivative at a temperature in a range of from about 30° C. to about 100° C.; and evaporating the solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.