Process for preparing 2-(alkylbenzoyl)benzoic acid
US4766240A · kind A · utility
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8Claims
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Key dates
| Filing date | Apr 24, 1987 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Apr 24, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/373
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An environmentally acceptable process is provided to synthesize a 2-(alkylbenzoyl)benzoic acid suitable for synthesizing a 2-alkylanthraquinone without further purification. Usually the crude product is isolated from the reaction mixture by a succession of steps which generate a large volume of aqueous waste. The present process eliminates or decreases these wastes and produces a product of sufficient purity for synthesizing as 2-alkylanthraquinone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.