Process for production of a betaine such as carnitine
US8334132B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2007 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Sep 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P13/007
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
According to the present invention, by using 4-halogeno-3-hydroxybutanamide as a substrate in quaternary amination reaction with trialkylamine which is an important step in betaine (such as carnitine) preparation processes, it becomes possible to reduce the production of crotonic acid derivatives (the major by-product) greatly compared to conventional processes. Consequently, it becomes possible to prepare a betaine, such as carnitine, at a high yield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.