Process for producing a furanone derivative or a -butyrolactone derivative by treating a hydroxycarboxylic acid or a hydroxyl group-containing hydroxycarboxylic acid or an oligomer thereof at high temperature and high-pressure water

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a furanone derivative or a -butyrolactone derivative by a high temperature high pressures water treatment of hydroxy carboxylic acid having a hydrogen atom and a hydroxyl group at -position or its oligomer.SOLUTION: A method of manufacturing a furanone derivative or a -butyrolactone derivative uses hydroxy carboxylic acid having a hydrogen atom and a hydroxyl group at -position or its oligomer as a raw material, and mixes the raw material solution and high temperature high pressure water, and conducts a reaction at a temperature in a range of 200°C to 500°C to synthesize the furanone derivative or the -butyrolactone derivative. A novel synthesis method of the furanone derivative or the -butyrolactone derivative using the hydroxy carboxylic acid having a hydrogen atom and a hydroxyl group at -position or its oligomer as the raw material can be provided and it can synthesize with one step reaction, has high yield, and is easy to separate and purify.