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发明公开
CN110372594A 1,3-二甲基-1H-吡唑-4-甲酸的合成方法 有权

1,3-二甲基-1H-吡唑-4-甲酸的合成方法
摘要：
本发明涉及1,3-二甲基-1H-吡唑-4-甲酸的合成方法，其步骤为：以乙酰乙酸乙酯为原料经缩合关环，甲酰化，还原脱氯，氧化得到1,3-二甲基-1H-吡唑-4-甲酸。相比于现有方法，本方法反应成本更低，收率更高，具有更好的经济效益；且避免了重金属氧化所带来的成本及环境污染等问题，为工业化创造了条件。
摘要（英）：

The invention relates to a method for synthesizing 1,3-dimethyl-1H-pyrazole-4-carboxylic acid. The method comprises the step that 1,3-dimethyl-1H-pyrazole-4-carboxylic acid is prepared from the raw material: ethyl acetoacetate through condensation and ring closure, formylation, reductive dechlorination and oxidation. Compared with an existing method, the method has lower reaction cost, a higher yield and better economic performance; and the problems such as cost and environmental pollution caused by heavy metal oxidation are solved, and conditions are created for industrialization.

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