论文部分内容阅读
目的 :合成标题化合物 ,并进行工艺改进。方法 :以 2 -戊酮和草酸二乙酯为原料 ,经三步反应合成了产物。结果 :反应的总收率为 4 7.7%。合成的各步产品经元素分析、红外和核磁共振光谱确证。结论 :改进的工艺具有反应温度低、时间短等优点 ,并提高了收率。
Purpose: To synthesize the title compound and to make process improvements. Methods: The product was synthesized in three steps using 2 - pentanone and diethyl oxalate as raw materials. Results: The total yield of the reaction was 4 7.7%. The synthesis of each step of the product by elemental analysis, infrared and nuclear magnetic resonance spectroscopy confirmed. Conclusion: The improved process has the advantages of low reaction temperature, short time and increased yield.