Method for producing N-alkoxy-N-alkylamides
US6891049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2001 |
| Grant date | May 10, 2005 |
| Priority date | — |
| Expiry date | Jan 2, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The method for producing N-alkoxy-N-alkylamides of general formula (I): wherein R1 represents C1-10-alkyl, cyclo-C5-7-alkyl, cyclo-C5-7-alkenyl, C2-10-alkenyl, aryl, aryl-C1-3-alkyl, heteroaryl, heteroaryl-C1-3-alkyl or heterocyclyl; and R2 represents C1-6 alkyl. In the process, an ester of general formula (II): R1COOR3, wherein R1 has the above-mentioned meaning, and R3 represents C1-6-alkyl, 4-nitrophenyl, 2,4-dinitrophenyl, succinimido or benzotriazole-1-yl, is reacted with hydroxylamine, a hydroxylamine derivative or with a hydroxylammonium salt, and the reaction product is alkylated in the presence of a phase transfer catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.