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Enhanced electrochemical oxidation of perfluorooctanoic acid on Ti/SnO_(2)-Sb electrode by surface morphology regulation

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Chinese Chemical Letters 2024年第3期35卷 140-143页

作者： Kaiqiang Hou Genwang Zhu Yujie Feng Yanming Liu Xie Quan Key Laboratory of Industrial Ecology and Environmental Engineering(Ministry of Education China)School of Environmental Science and TechnologyDalian University of TechnologyDalian 116024China State Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China

Electrochemical oxidation is an effective method to degrade persistent organic ***,due to the limited catalytic activity of traditional thin film electrodes,the anodic oxidation process is slow and usually requires high energy ***,Ti/SnO_(2)-Sb electrode with regulated surface structure was reported to enhance the performance for electrochemical oxidation of persistent organic *** electrode deposited with SnO_(2)-Sb nanoneedles(Ti/N-SnO_(2)-Sb)showed higher oxidation *** kinetic constant for perfluorooctanoic acid(PFOA)oxidation was 2.0 h^(-1)and the total organic carbon removal rate was 81.7%(4 h)at a relatively low current density of 6 mA/cm^*** with Ti/SnO_(2)-Sb thin film and nanoparticles,Ti/N-SnO_(2)-Sb significantly improved the electrochemical active area and·OH yield,and simultaneously reduced the electron transfer resistance,which enabled it to oxidize PFOA more rapidly even at a lower *** work provides a new strategy for promoting the electrochemical oxidation performance.

关键词： Electrochemical oxidation Nanoneedle SnO_(2)-Sb perfluoroalkyl compounds Electrochemical degradation Persistent organic pollutants

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An Efficient Process for the Synthesis of perfluoroalkylated Benzazepines

An Efficient Process for the Synthesis of Perfluoroalkylated...

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中国化学会全国第十二届有机合成化学学术研讨会

作者： Sun,Xuechun Han,Jing Chen,Jie Zhang,Hui Cao,Weiguo Department of Chemistry Shanghai University Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic ChemistryCAS

Benzazepine moiety occurs frequently in both natural and synthetic drugs and is of highly biological *** usage of this class of compound is not merely confined to the management of stress related conditions and for their use as antibacterial ***,the quinoxaline core is present in many drugs with antitumor,anticancer,antiamoebic and organic *** of important applications of benzazepine and quinoxaline compounds in both medicinal and industrial fields,we propose an efficient protocol for the synthesis of perfluoroalkyl compounds 3 consisted of benzazepine and quinoxaline structure with 3-(2-aminophenyl)quinoxalin-2(1H)-one derivatives 1 and 2-perfluoroalkynoate 2.

关键词： benzazepine quinoxaline perfluoroalkyl compounds

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Copper-Catalyzed Oxidative Cyclization: Synthesis of 3-Carbonyl-1-perfluoroalkylpyrrolo[1,2-a]quinolines

Copper-Catalyzed Oxidative Cyclization: Synthesis of 3-Carbo...

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中国化学会全国第十二届有机合成化学学术研讨会

作者： Xu,Zhiliang Ni,Fei Han,Jing Chen,Jie Zhang,Hui Cao,Weiguo Department of Chemistry Shanghai University Key Laboratory of Organofluorine Chemistry Shanghai Institute of Organic ChemistryCAS

Among various N-heterocycles,reduced and oxidized forms of pyrrolo[1,2-a]quinolines occur widely among natural products,and exhibit a wide array of biological activities1,*** particular,fluorine-containing pyrrolo[1,2-a]quinolines are less *** we report the efficient synthesis of 3-carbonyl-1-perfluoroalkylpyrrolo[1,2-a]quinolines via two-step copper-catalyzed *** performed the reaction by employing quinoline 1,terminal aryne 2 and perfluoroalk-2-ynoate 3 in the presence of 5 mol-% of CuI in *** stirring for 36 h at r.t.,CuBr,DMAP and DMSO were added,and the mixture was stirred at 80°C for an additional 24 h.A series of substituted pyrrolo[1,2-a]quinolines 4 were synthesized in moderate to high yields(Table 1).

关键词： Pyrrolo[1,2-a]Quinolines perfluoroalk-2-ynoate perfluoroalkyl compounds

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