Process for the direct alpha-methylenation of ketones
US11401228B2 · kind B2 · utility
0Cited by
0References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2019 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Nov 18, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/343
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for preparing an α-methylene ketone comprising the step of reacting a ketone with formaldehyde in the presence of a catalyst which is an organic compound comprising at least one acid function or the corresponding salt, ester or amide thereof and at least one amine function or the corresponding ammonium salt, or a zwitterion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.