摘要
研究在无溶剂无引发剂条件下,采用特制反应器,以碳酸二甲酯为原料,经光氯化反应合成双(三氯甲基)碳酸酯的新工艺。分析了光氯化的反应机理,研究了光强、温度以及通氯量对反应的影响。确定最佳工艺条件为光强1 mW/cm2,反应温度前期40℃,后期80℃,通氯量450 ml/min,在此条件下反应时间5 h,产品产率95%,含量99%以上。产品结构由熔点和红外光谱确证。
In this paper introduced. The product is pr a new epared method to prepare Bis （trichloromethyl） carbonate with dimethyl carbonate is in a pecial made reactor based on the solventless and initiatorless photochlorination. The machenism of light chlorination and the varied factors which affect the reaction are studied. The optimum reaction conditions are as follows ： light quantum is 1 mW/cm^2, the primary reaction temperature is 40℃, the latter 80℃, chlorine flow is 450ml/min. Under the conditiongs, the reaction time is 5h, the yield is 95%, the purity is 99%. The product is confimed by melt point and IR.
出处
《浙江理工大学学报（自然科学版）》
2006年第4期401-404,共4页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
关键词
双(三氯甲基)碳酸酯
无溶剂
无引发剂
光氯化
合成
Bis（trichloromethyl） arbonate
Solventless
Initiatorless
Light chlorination
Sythesis
