| 摘要 |
<p>The present invention provide a process that allows the industrially advantageous production of a cyclopentanone-2,3,5-tricarboxylic acid triester. Namely, the present invention provides a process for producing a cyclopentanone-2,3,5-tricarboxylic acid triester represented by the general formula (IV), characterized by comprising:
(1) allowing an itaconic acid diester represented by the general formula (I) to react with a metal salt of malonic acid diester represented by the general formula (II) to obtain a reaction mixture containing an adduct represented by the general formula (III); and then
(2) allowing said reaction mixture to react with an alcohol or a metal alkoxide, or a mixture thereof:
wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 each independently represents an alkyl group which may have a substituent, and M represents an alkali metal.</p> |
