Method of preparing halogen benzoic acids from toluenes halogenated in the nucleus
US4605757A · kind A · utility
7Cited by
4References
10Claims
0Family size
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Key dates
| Filing date | Mar 5, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Mar 5, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/265
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the preparation of halogen benzoic acids by oxidation of the corresponding nuclear halogenated toluenes with oxygen or a gas containing oxygen, in acetic acid, with the addition of soluble cobalt and/or manganese compounds, and of sodium bromide, at elevated temperatures of about 80.degree. to 220.degree. C. and pressures of about 1 to 50 bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.