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以醇或水溶性高分子（聚乙烯吡咯烷酮，ＰＶＰ；乙基纤维素，ＥＣ；聚乙烯醇，ＰＶＡ；羧甲基纤维素钠，ＣＭＣＮａ）为载体，制备了四种可溶高分子负载钯催化剂。无机碱的存在对反应呈明显的加速效应。在少量Ｋ２ＣＯ３存在下，ＥＣ－ＰｄＣｌ２和ＰＶＰ－ＰｄＣｌ２对于硝基苯的催化加氢具有非常高的活性，最高活性＞２３０ｍｏｌＨ２／ｍｏｌＰｄ·ｍｉｎ，即大于５１５０ｍｌＨ２／ｍｍｏｌＰｄ·ｍｉｎ，该数值是已知文献报道的最好结果。详细考察了各种碱、Ｋ２ＣＯ３用量、溶剂以及反应温度对ＰＶＰ－ＰｄＣｌ２催化硝基苯加氢性能的影响。
Four kinds of soluble polymer-supported palladium catalysts were prepared with alcohol or water-soluble polymer (polyvinylpyrrolidone, PVP; ethylcellulose, EC; polyvinyl alcohol, PVA; sodium carboxymethylcellulose and CMCNa) . The presence of inorganic base on the reaction showed a significant acceleration effect. In the presence of a small amount of K2CO3, EC-PdCl2 and PVP-PdCl2 have very high activity for the catalytic hydrogenation of nitrobenzene with a maximum activity of> 230 mol H2 / mol Pd · min, ie greater than 5150 ml H2 / mmol Pd · min, which is known Reported the best result. The effect of various bases, K2CO3 dosage, solvent and reaction temperature on the hydrogenation performance of nitrobenzene catalyzed by PVP-PdCl2 was investigated in detail.