Process for the preparation of trimethyl-benzoquinone
US3956346A · kind A · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1975 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Jan 17, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C46/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing trimethylbenzoquinone is provided which does not involve the formation of a sulphonic acid intermediate which comprises oxidising 2,3,6-trimethyl-phenol directly with manganese dioxide in an aqueous solution containing sulphuric acid in an amount up to 40% by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.