摘要
以硫酸为催化剂,研究了三聚甲醛与甲酸甲酯偶联合成乙醇酸甲酯和甲氧基乙酸甲酯的反应中,催化剂浓度、原料配比、反应温度、反应时间等条件对反应过程的影响,通过对产物收率和系统压力变化的分析,并结合与其它不同酸强度催化剂的对比,得到甲醛的活化是偶联反应的速率控制步骤,催化剂的酸强度决定其对甲醛的活化能力,是影响偶联反应的主要因素.
The effect of different reaction conditions, such as catalyst concentration, molar ratio of reactants, reaction temperature, reaction time, on the coupling reaction of trioxane and methyl formate synthesizing methyl glycolate and methyl methoxy acetate using sulfuric acid as catalyst has been studied. Through the analysis for the yield of products and system pressure, and comparison with other different acidity catalysts, we considered that the activation of formaldehyde was the control step of reaction rate to the reaction, the acidity of catalyst decided its activation ability to formaldehyde, which was the major effect factor to the reaction.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2007年第3期224-228,共5页
Journal of Molecular Catalysis(China)
