abstract |
(57) Abstract: A novel process for producing quinoline-2,3-dicarboxylic acid is provided. SOLUTION: Dichlorosuccinate is reacted with an amine, and the resulting alkylamino maleate or a mixture of alkylamino fumarate and chloroamino succinate is reacted with aniline to obtain a dialkyl quinoline- Hydrolysis of 2,3-dicarboxylate to give quinoline- 2,3-dicarboxylic acid. |