| 摘要 |
PROBLEM TO BE SOLVED: To provide a new reaction that uses a raw material other than aldehyde for a method for manufacturing an unsaturated carboxylic acid.SOLUTION: A catalyst for manufacturing an unsaturated carboxylic acid is a catalyst that opens the ring of lactone, isomerizes, and obtains an unsaturated carboxylic acid, wherein the catalyst is a solid acid, and the solid acid is desirability at least one chosen from a group consisting of solid phosphate, solid superacid, zeolite, heteropolyacid, layered silicate, clay mineral, and solidification sulfonic acid. |
