| abstract |
A process for producing α, β-unsaturated carboxylic acid ester which comprises catalytically reacting α-hydroxycarboxylic acid ester with crystalline aluminosilicate catalyst, and then catalytic reacting the resulting reaction product with solid acid catalyst. n According to the process, α, β-unsaturated carboxylic acid ester of a high purity, and a high quality, without by-product, can be produced efficiently. |