Research on the synthesis of N-Methyl morpholine

This paper focuses on the synthesis of N-Methyl morpholine through the reaction of morpholine with methyl carbonate and explores the effects of molar ratio of react-ants,reaction time and reaction temperature on the yield by experiments.The optimal conditions for reaction are as follows:n(morpholine):n(methyl carbonate) = 1:1.2;reaction time is 3h and reaction temperature is 100℃ .Under such conditions,the yield of N-Methyl morpholine can reach 95% and the purity can reach 97.50%.The experiment results show that this method has many advantages,such as simple operation,environmental friendliness,mild conditions,cheap and easily-obtained raw materials.In a word,it is a green method of synthesizing N-Methy morpholine which is simple but important.