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TEMPO与草酰胺单核Co(Ⅱ)配合物协同催化氧化醇

Catalytic Oxidation of Alcohols Using TEMPO and Oxamide Mononuclear Cobalt(Ⅱ) Complex
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摘要 合成草酰胺单核Co(Ⅱ)配合物,通过红外光谱、核磁共振氢谱、元素分析等手段对其表征。研究以分子氧为氧源时,其与有机小分子催化剂2,2,6,6-四甲基哌啶-N-氧自由基(TEMPO)协同催化氧化苯甲醇的性能,考察溶剂、温度、时间、氧气压力等因素对反应的影响。结果表明:反应温度为100℃,氧气压力为0.5 MPa,反应12 h时,苯甲醇的转化率达到92.2%,苯甲醛选择性为95.4%。该催化体系实现在温和的条件下,催化氧化多种醇的需氧氧化反应,表现出优异的催化性能。 An oxamide mononuclear cobalt（Ⅱ） complex was synthesized and characterized by IR,H NMR and elemental analysis.The catalytic activity of the complex combining with TEMPO（2,2,6,6-tetramethylpiperidine-N-oxyl）,an organic catalyst,in benzyl alcohol oxidation by molecular oxygen has been studied.The influences of solvent,temperature,time and oxygen pressure on the oxidation reaction have been determined.92.2% conversion rario of benzyl alcohol and 95.4% selectivity for benzaldehyde were obtained at 100 ℃ under 0.5 MPa of oxygen in 12 h.Using this catalytic system,the aerobic oxidation of various alcohols can be catalyzed under mild conditions.
作者 刘春宏 郑庚修 张营
机构地区 济南大学化学化工学院
出处 《济南大学学报（自然科学版）》 CAS 北大核心 2010年第2期152-155,共4页 Journal of University of Jinan(Science and Technology)
基金 山东省科学发展计划(2008GG10002021)
关键词 醇 催化氧化 TEMPO 草酰胺单核Co(Ⅱ)配合物 alcohol catalytic oxidation TEMPO oxamide mononuclear cobalt（Ⅱ） complex
分类号 O625.511 [理学—有机化学]
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参考文献12

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济南大学学报（自然科学版）
2010年 第2期

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