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催化学报  2011 

N-羟基邻苯二甲酰亚胺与8-羟基喹啉氧钒(IV)配合物协同催化分子氧氧化乙苯

DOI: 10.1016/S1872-2067(10)60255-0, PP. 1342-1348

Keywords: N-羟基邻苯二甲酰亚胺,8-羟基喹啉氧钒(IV),需氧氧化,乙苯,苯乙酮

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Abstract:

?研究了钒化合物对N-羟基邻苯二甲酰亚胺(NHPI)催化分子氧氧化乙苯反应中的调变效应.结果表明,由8-羟基喹啉及其衍生物与乙酰丙酮氧钒(IV)配位制得的8-羟基喹啉氧钒(IV)配合物的催化活性比乙酰丙酮氧钒(IV),NH4VO3和V2O5的高.在优化的反应条件下,乙苯转化率和苯乙酮选择性可分别达60%~69%和97%.基于液体反应的紫外光谱,推测钒催化剂能够促进NHPI转变为N-氧基邻苯二甲酰亚胺自由基和1-苯基过氧化氢转变为苯乙酮.

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