| abstract |
To provide an industrially advantageous method for producing 2-methyl-4- (2-methylbenzoylamino) benzoic acid. A benzoylaminobenzoic acid represented by the general formula (4) is a compound useful as a synthetic intermediate of a pharmaceutical, but can be produced by oxidizing a corresponding benzoylaminobenzaldehyde. [Wherein R 1 represents a halogen atom, a lower alkyl group or the like. R 2 represents a hydrogen atom, a lower alkyl group or the like. R 3 represents a halogen atom, a lower alkyl group or the like. ] [Selection figure] None |