Preparation of 4-hydroxy-2,4,6-trimethyl-cyclohexa-2,5-diene-1-one
US4164516A · kind A · utility
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23Claims
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Key dates
| Filing date | Oct 17, 1977 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Oct 17, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/39
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
4-Hydroxy-2,4,6-trimethyl-cyclohexa-2,5-dien-1-one ["mesitylquinol"] is prepared by oxidizing 2,4,6-trimethyl phenol ["mesitol"] with either molecular oxygen or an oxygen containing gas, in the simultaneous presence of (i) a cobalt/Schiff base complex, (ii) an amine, phosphine and/or organic phosphite co-catalyst, and, optionally, (iii) an alkali metal base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.