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Ce(SO_4)_2和V_2O_作为氧化性的助催化剂在硝基苯还原羰基地为苯氨基甲酸酯反应中能显著提高PdCl_2-邻菲咯啉(phen)体系的催化活性,应用LR,UV,循环伏安法和XPS测试结果表明Ce(SO_4)_2与Ptren容易生成配合物,Ce(Ⅳ)的作用在于维持Pd(Ⅱ)的氧化态,而Ce(Ⅲ)可能有助于硝基苯的脱氧。
The catalytic activities of Ce (SO 4) 2 and V 2 O 2 as oxidation promoters in the reaction of nitrobenzene with carbonyl to phenyl carbamate can significantly increase the catalytic activity of PdCl 2 -phenanthroline (phen) The results of cyclic voltammetry and XPS show that Ce (SO 4) 2 and Ptren are easy to form a complex. The effect of Ce (Ⅳ) is to maintain the oxidation state of Pd (Ⅱ), while Ce (Ⅲ) Of deoxygenation.