Process for the preparation of isovanillin
US5648552A · kind A · utility
3Cited by
7References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Oct 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/71
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a novel process for the preparation of isovanillin. The process for the preparation of isovanillin according to the invention is characterized in that it consists in dealkylation being carried out using a strong acid, selectively in the 3-position, on a 3-alkoxy-4-methoxybenzaldehyde wherein said alkoxy group has at least two carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.