| 摘要 |
PURPOSE:To obtain the titled compound useful as an acylation agent, a crosslinking agent for polymer, etc., in high yield and purity, by using an alkali metal fumarate as a starting raw material and reacting the fumarate with a specific inexpensive and easily handleable chlorination agent in the presence of an organic amide as a catalyst. CONSTITUTION:A monoalkali metal fumarate or dialkali metal fumarate is used as a starting raw material and is made to react with a chlorination agent consisting of phosphorus oxychloride in the presence of a catalyst consisting of an organic amide preferably in an organic solvent such as pentane at 0-100 deg.C, preferably 20-80 deg.C. The amount of phosphorus oxychloride is 1.0-4.0mol, preferably 1.0-2.0mol per 1mol of the starting raw material. The organic amide catalyst is e.g. N,N-dimethylformamide, N-methyl-2-piperidone, etc., and its amount is 0.01-0.80mol, preferably 0.05-0.50mol per 1mol of the starting raw material. |
