Method for producing dinitro-diaza-alkanes and interediate products thereof
US6670506B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Mar 29, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C241/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of synthesis of dinitro-diaza-alkanes and intermediate products thereto from alkylamines and esters, whereby a dialkyl ester of a dicarboxylic acid is reacted with an alkylamine in an aqueous medium to form the corresponding dialkyldiamide of the dicarboxylic acid;the resulting dialkyldiamide is nitrated by means of conventional nitration agents to form the corresponding dialkyldinitroamide of the dicarboxylic acid and;the resulting dialkyldinitroamide is reacted with methylamine and/or ethylamine in an aquous medium to yield a corresponding alkylnitroamine and the dimethyldiamide and/or diethyldiamide of the dicarboxylic acid, and the alkylnitroamine is isolated from that, and the isolated alkylnitroamine is condensed in a known manner to form the dinitro-diaza-alkanes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.