硝基苯还原羰化反应制备氨基甲酸酯选择性的研究

Study on Selectivity of Reductive Carbonylation of Nitrobenzene to Carbamates

在硝基苯还原羰化反应和还原反应的竞争中 ,使用高分子载体 ,加入第二金属组分 ,升高反应温度有利于还原羰化反应的进行 .并且实现了利用双金属效应 。

In the process of reductive carbonylation of nitrobenzene to carbamates, another reduction reaction of nitrobenzene to amine proceeded at the same time. By investigation of various reaction conditions, it is found that the selectivity of reductive carbonylation of nitrobenzene can be remarkably increased by using PVP as a carrier, incorporating FeCl3 as a second metal component, and raising the temperature. When the organic ligands were replaced by inorganic compound, high selectivity was achieved by a synergic effect of bimetallic systems.