| abstract |
A process for producing a carboxylic acid derivative characterized by mixing a quaternary ammonium salt having a specific triazinenring in the molecule, a carboxylic acid compound, and a compound having a nucleophilic functional group to conduct the condensationnreaction of the carboxylic acid compound with the compound having a nucleophilic functional group; and a condensing agent comprising thenquaternary ammonium salt. By the process, the condensation reaction can be conducted under mild conditions and a carboxylic acidnderivative, especially an amide or ester compound, can be obtained in high yield. |