| 摘要 |
Disclosed is a method for enhancing a yield of anα,β-unsaturated carboxylic acid obtained by liquid-phase oxidation reaction of an olefin or anα,β-unsaturated aldehyde. In particular, there is provided a method for producing anα,β-unsaturated carboxylic acid, wherein the method includes the step of carrying out oxidation reaction of an olefin or anα,β-unsaturated aldehyde in a liquid phase to obtain a reaction mixture containing anα,β-unsaturated carboxylic acid and anα,β-unsaturated carboxylic acid anhydride and the step of bringing theα,β-unsaturated carboxylic acid anhydride into contact with an alcohol or water to obtain anα,β-unsaturated carboxylic acid resulting from decomposition of theα,β-unsaturated carboxylic acid anhydride. |
