Process for the production of carnitine by cycloaddition
US8563752B2 · kind B2 · utility
1Cited by
1References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 20, 2011 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Jul 20, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C227/32
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a method for the production of L-carnitine, wherein a chiral β-lactone carnitine precursor is obtained by a [2+2] cycloaddition of ketene with an aldehyde X—CH2—CHO, wherein X is selected from Cl, Br, I and trimethylamine, in the presence of a chiral catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.