Synthesis and purification method of high-purity N-n-butoxy methacrylamide (NBMA)
The invention provides a synthesis and purification method of high-purity N-n-butoxy methacrylamide (NBMA). The method specifically comprises the following steps: S1, preparation of a supported quaternary ammonium base catalyst: carrying out heating reflux reaction on quaternary ammonium salt and hy...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a synthesis and purification method of high-purity N-n-butoxy methacrylamide (NBMA). The method specifically comprises the following steps: S1, preparation of a supported quaternary ammonium base catalyst: carrying out heating reflux reaction on quaternary ammonium salt and hydroxide in an alcoholic solution to obtain the supported quaternary ammonium base catalyst; s2, preparation of N-isobutoxy methacrylamide: taking acrylamide, paraformaldehyde and n-butyl alcohol as raw materials to react under the action of the supported quaternary ammonium base catalyst prepared in the step S1, so as to prepare the N-isobutoxy methacrylamide. The N-n-butoxy methacrylamide prepared by the preparation method disclosed by the invention is relatively high in purity, few in impurities and low in cost.
本发明提供了一种高纯级N-正丁氧基甲基丙烯酰胺NBMA的合成与纯化方法,具体包括以下步骤:S1:负载型季铵碱催化剂的制备:将季铵盐在醇溶液中与氢氧化物加热回流反应后得到负载型季铵碱催化剂;S2:N-异丁氧基甲基丙烯酰胺的制备:在步骤S1制备获得的负载型季铵碱催化剂的作用下以丙烯酰胺、多聚甲醛和正丁醇为原料进行反应,制备获得N-异丁氧基甲基丙烯酰胺。通过本发明制备获得的N-正丁氧基甲基丙烯酰胺纯度较高,且杂 |
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