Dawson结构钨钒磷杂多化合物催化苯酚过氧化氢的羟化作用及其羟化机理  

THE ROLE AND MECHANISM OF TUNGSTOVANADOPHOSPHATES IN THE HYDROXYLATION OF PHENOL WITH HYDROGEN PEROXIDE

作　　者：杨宇[1] 于剑锋[1] 吴通好[1] 孙家钟[1] 

机构地区：[1]吉林大学化学系

出　　处：《催化学报》1997年第3期230-233,共4页

基　　金：国家自然科学基金

摘　　要：合成了系列Ｄａｗｓｏｎ结构钨钒磷杂多化合物（Ｃｐｙｒ）７＋ｎＰ２Ｗ１８－ｎＶｎＯ６２（ｎ＝１～３），并用ＩＲ，ＮＭＲ等手段对其结构进行了表征．考察了这类杂多化合物对苯酚过氧化氢的羟化活性，探讨了反应机理．A series of tungstovanadophosphoric acids were synthesized and characterized with the methods of IR and NMR. The influence of V content, temperature, and Phenol/H 2O 2 molar ratio on catalytic activity was examined. The results of phenol hydroxylation with H 2O 2 in the presence of these heteropolycompounds are reported. Finally the mechanism of the reaction is discussed.

关 键 词：钨 钒 磷 杂多化合物 苯酚 羟化 苯二酚 催化 

分 类 号：O643.36[理学—物理化学] TQ426.91[理学—化学]