Synthesis and purification method of high-purity N-isobutoxy methacrylamide (IBMA)

The invention provides a method for synthesizing and purifying high-purity N-isobutoxy methacrylamide (IBMA), which comprises the following steps: S1, preparing a supported quaternary ammonium base catalyst, S2, preparing N-isobutoxy methacrylamide, and finally, S3, preparing N-isobutoxy methacrylamide. The N-isobutoxy methacrylamide prepared by the synthesis and purification method disclosed by the invention is high in chemical purity, less in moisture and less in residual amounts of isobutanol and formaldehyde, and the method disclosed by the invention is simple in steps and high in preparation efficiency and has relatively high commercial and popularization values. 本发明提供了一种高纯级N-异丁氧基甲基丙烯酰胺IBMA的合成与纯化方法，包括S1负载型季铵碱催化剂的制备、S2N-异丁氧基甲基丙烯酰胺的制备以及最终S3N-异丁氧基甲基丙烯酰胺的制备，通过本发明的合成与纯化方法制得的N-异丁氧基甲基丙烯酰胺化学纯度高、水分少，及异丁醇、甲醛残余量少，且本发明的方法步骤简单，制备效率高，具有较高的商用与推广价值。