The invention relates to synthesis of an organic matter, in particular to a method for preparing ethyl pyruvate. Ethyl lactate is taken as a raw material, and the ethyl lactate is oxidized into the ethyl pyruvate by a acetone solution of halogeno organic oxidant at a temperature of between 0 and 45 DEG C under catalysis of oxynitride and alkali; the amount of the oxynitride is 0.1 to 1.0 percent of the ethyl lactate; the amount of the halogen organic oxidant is 1.0 and 1.2 times of the equivalent amount of the ethyl lactate; and the amount of the alkali is 1 and 1.2 times of the equivalent amount of the ethyl lactate. The method for preparing the ethyl pyruvate has the advantages of mild reaction conditions, rapid reaction, simple process, easy operation and easy separation. In the reaction, industrial chlorinating agent and brominating agent with low cost and easy acquisition are used as oxidants to oxidize the ethyl lactate into the ethyl pyruvate.
; 刘莺; 苑学霞; 薛钦昭
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