| abstract |
(57) [Abstract] [PROBLEMS] To provide a method for producing propane-1,2,3-tricarboxylic acid, tetrahydrofurfuryl acetic acid, and esters thereof. The method is as follows: Citric acid or its C 1 -C 20 -alkyl or C 7 -C 12 -aralkyl ester on a hydrogenation catalyst in a non-aqueous solvent at 50 to 400 ° C. and 1 to 40 ° C. It consists of reacting at 0 bar. [Effect] Although the conventional process does not produce any trifunctional compound, the trifunctional compound can be obtained by the method of the present invention. |