NEW METHOD FOR PRODUCING LEVULINIC ACID

摘要

<P>PROBLEM TO BE SOLVED: To provide a method for producing levulinic acid from 3-carboxymuconolactone as a starting substance. Ž<P>SOLUTION: This method for producing the levulinic acid represented by formula (2) comprises alkali-hydrolyzing 3-carboxymuconolactone in an alkali aqueous solution and then acidifying the obtained hydrolysis solution with a strong acid into acidity of ≤pH 1 to perform decarbonation and keto-enol tautomerization. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž