Method for synthesizing arylamine by utilizing 4, 4-dimethoxy-2, 2-dipyridyl silver to perform catalytic hydrogenation on aromatic nitro-compound

The invention discloses a method for synthesizing arylamine by utilizing 4, 4-dimethoxy-2, 2-dipyridyl silver to perform catalytic hydrogenation on an aromatic nitro-compound. In the method, 4, 4-dimethoxy-2, 2-dipyridyl silver which is low in cost and is synthesized easily is taken as a catalyst, green, environment-friendly and nontoxic hydrogen is taken as a hydrogen source, and the aromatic nitro-compound is reacted at one step under a relatively mild condition, so as to synthesize arylamine. The method discloses by the invention has the advantages that the operation is simple, the catalyst is cheap, is available easily and is less in dosage, the reaction condition is mild, the functional group tolerance for substrates is better, the yield of the product is high, the cost of industrial production is low, and the application prospect is good. 本发明公开了种4,4-二甲氧基-2,2-联吡啶银催化氢化芳香硝基化合物合成芳胺的方法，该方法以廉价、易于合成的4,4-二甲氧基-2,2-联吡啶银为催化剂，以绿色、环保、无毒的氢气为氢源，将芳香硝基化合物在相对温和的反应条件下，步反应即可合成芳胺。本发明操作简单，催化剂廉价易得且用量少，反应条件温和，对底物表现出较好的官能团容忍性，产