N-methylimidazole, or 1-methylimidazole, is mainly used as an intermediate in organic synthesis, an ionic liquid and resin curing agent, a binder, etc., such as a synthesis of DNA and a hydroxyacetylation catalyst and used in pouring, bonding and FRP and other fields. Therefore, optimizing the synthesis process of N-methylimidazole has good application value and practical significance Chemicalbook. At present, the research on the preparation method of N-methylimidazole mainly focuses on 6 methods: 1,2-dicarbonyl compound synthesis, VanLeusen synthesis, Phillips synthesis, Wohl-Marckwald synthesis, Witting synthesis and N-methylation synthesis.