| 摘要 |
A process for synthesizing 3-chloropyruvic acid that is able to efficiently synthesize 3-chloropyruvic acid by inhibiting the formation of by-products in the form of the dichloride and trichloride. After mixing pyruvic acid and sulfuryl chloride while cooling to a temperature lower than their reaction temperature, and preferably to 0 to 10 DEG C, the reaction temperature is raised and reaction of the components is carried out to obtain 3-chloropyruvic acid. This 3-chloropyruvic acid is then purified by temperature-controlled fractional sublimation. |
