胺类化合物是合成药物、染料、以及其它精细化工产品的重要中间体。它们一般由相应的硝基化合物通过选择性催化加氢还原制备，但当其它可还原官能团（如羰基、氰基、双键等）共存时，硝基的选择性还原极具挑战。因此，开发能高活性、高化学选择性还原取代硝基化合物制备胺类化合物的多相催化剂在精细化工产品领域具有重要的意义。本项目在前期工作的基础上，以介孔氮化碳作为活性载体负载纳米金属，以取代硝基化合物的高化学选择性还原作为研究主线，结合实验、谱学、理论计算等研究手段，系统研究载体氮化碳的微观结构、不同纳米金属及其组合、不同反应条件等关键因素对反应活性的影响，建立催化剂结构与活性之间的关系，为开发温和条件下取代硝基化合物高效转化为胺基化合物的多相催化剂奠定基础。

The chemoselective hydrogenation of substituted nitroaromatics to the corresponding substituted anilines, which are important products for pharmaceuticals, pesticides and dyes, is a difficult scientific and technological problem. Few strategies have been described to effectively reduce these molecules, but most of them use stoichiometric reducing agents, such as sodium hydrosulfite, iron, tin or zinc in ammonium hydroxide. In this poroposal, We design a kind of functional noncatalyts based on the mesoporous carbon ntride materials and explore their reaction activities in the chemoselective hydrogenation of nitro compounds when other reducible functional groups - such as carbonyl, nitrile or amide groups are present. The effect of the nanostructure of the carbon nitride, the reaction conditions including reaction temperature, hydrogen pressure, reaction time etc will be investigated in details. The knowledge on the reaction mechanism will shed light on the judicious modification of microstructure of the catalysts or designing new novel catalytic materials. Density functional calculations will then be used to investigate the micro-electronic structure of the carbon nitrides, the reaction mechanism, and the structure activity relationship using some model systems.