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Chinese Journal of Chemistry 2024年第8期42卷 846-852页

作者： Ting chen Wei Feng Ruitong Yang shanping chen Guo-Jun Deng Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationCollege of ChemistryXiangtan UniversityXiangtanHunan411105 China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHunan453007 China

Comprehensive Summary,A convenient approach for the construction of 2-aminobenzothiazoles via I2-catalyzed tandem cyclization reaction of amines and carbon disulfide has been *** present approach starts from simple and readily available starting materials,affording a series of 2-aminobenzothiazoles in up to 89%yields under metal-free *** this work,C—H/N—H functionalization was achieved and multiple C-hetero bonds were successfully constructed in one pot.

关键词： Sulfur heterocycles C-H functionalization Cyclization Tandem reaction Transition-metal-free Amines lodine N-Heterocycles

Formation of the Looming-evoked Innate Defensive Response during Postnatal Development in Mice

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Neuroscience Bulletin 2022年第7期38卷 741-752页

作者： shanping chen Huiying Tan Zhijie Wang Yu-ting Tseng Xiaotao Li Liping Wang Shenzhen Key Lab of Neuropsychiatric Modulation Guangdong Provincial Key Laboratory of Brain Connectome and BehaviorCAS Key Laboratory of Brain Connectome and Manipulationthe Brain Cognition and Brain Disease InstituteShenzhen Institute of Advanced TechnologyChinese Brain Science-ShenzhenFundamental Research InstitutionsAcademy of SciencesShenzhen-Hong Kong Institute of Shenzhen 518055China Department of Brain and Cognitive Sciences MeGovern Institute forBrain ResearchMassachusetts Institute of TechnologyCambridgeMA 02139USA University of Chinese Academy of Sciences Beijing 100049China

Environmental threats often trigger innate defensive responses in ***,the gradual development of functional properties of these responses during the postnatal development stage remains ***,we report that looming stimulation in mice evoked fight behavior commencing at P14-16 and had fully developed by *** visual-evoked innate defensive response was not significantly altered by sensory deprivation at an early postnatal ***,the percentages of wide-field and horizontal cells in the superior colliculus were notably elevated at *** findings define a developmental time window for the formation of the visual innate defense response during the early postnatal period and_provide important insight into the underlying mechanism.

关键词： Innate defensive response Postnatal stage Superiorcolliculus

In situ electron-induced reduction of NOx via CNTs activated by DBD at low temperature

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Frontiers of Environmental Science & Engineering 2020年第2期14卷 87-96页

作者： Weixuan Zhao Liping Lian Xingpeng Jin Renxi Zhang Gang Luo Huiqi Hou shanping chen Ruina Zhang Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3) Institute of Environmental ScienceFudan UniversityShanghai 200433China National Engineering Laboratory for VOCs Pollution Control Material&Technology University of Chinese Academy of SciencesBeijing 100049China Shanghai Institute for Design&Research on Environmental Engineering Shanghai 200232China

In this study,a new in situ electron-induced process is presented with carbon nanotubes(CNTs)as a reduction agent activated by dielectric barrier discharge(DBD)for nitrogen oxide(NOx)abatement at low temperature(<407 K).Compared with a single DBD system and a DBD system with activated carbon(DBD-AC),a DBD system with carbon nanotubes(DBD-CNT)showed a significant promotion of NOx removal efficiency and N2 *** the 02 content was 10%,the NOv conversion and N2 selectivity in the DBD-CNT system still reached 64.9%and 81.9%at a specific input energy(SIE)of 1424 J^L,and these values decreased to 16.8%,31.9%and 43.2%,62.3%in the single DBD system and the DBD-AC system,respectively.X-ray photoelectron spectroscopy(XPS)and scanning electron microscopy(SEM)were utilized to investigate surface changes in the CNTs after activation by DBD to explore the NO.t reduction abatement mechanism of this new ***,the outlet gas components were also observed via Fourier transform infrared spectroscopy(FTIR)to help reveal the NOr reduction *** results verified that carbon atoms excited by DBD and the structure of CNTs contributed to the synergistic activity of the DBD-CNT *** new deNOx process was accomplished through in situ heterogenetic reduction reactions between the NOx and carbon atoms activated by the plasma on the *** addition,further results indicated that the new deNOv process exhibited acceptable S02 tolerance and water resistance.

关键词： Dielectric barrier discharge NOx abatement In situ electron-induced reduction Carbon nanotubes

Metal-Free Synthesis of Benzo[a]phenanthridines from Aromatic Aldehydes,Cyclohexanones,and Aromatic Amines

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Chinese Journal of Chemistry 2022年第3期40卷 365-370页

作者： Pingyu Jiang Zhifei Shan shanping chen Quanyuan Wang Shuxin Jiang Haolin Zheng Guo-Jun Deng Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationCollege of ChemistryXiongtan UniversityXiangtanHunon 411105China Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates(South China University of Technology) GuangzhouGuangdong 510640China

A three-component synthesis of benzo[a]phenanthridines from aromatic aldehydes,cyclohexanones,and aromatic amines has been developed,which is mediated by KI/DMSO/camphorsulfonic acid to afford a variety of functionalized benzo[a]phenanthridines in satisfactory *** present strategy provides a biaryl motif ortho to the nitrogen atom which has the potential to be used as ligand by further *** the advantages of readily available starting materials,transition-metal-free conditions,gram-scale synthesis,and broad substrate scope,this three-component protocol provides an efficient approach for the preparation of diverse benzo[a]phenanthridines.

关键词： Nitrogen heterocycles Multicomponent reactions Dehydroaromatization Cyclization Metal-free

Conversion of NO with a catalytic packedbed dielectric barrier discharge reactor

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Plasma Science and Technology 2017年第11期19卷 67-74页

作者： Xu CAO Weixuan ZHAO Renxi ZHANG Huiqi HOU shanping chen Ruina ZHANG Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention （LAP^3） Institute of Environmental Science Fudan University Shanghai 200433 People＇s Republic of China Shanghai Institute for Design ＆ Research on Environmental Engineering Shanghai 200232 People＇s Republic of China

This paper discusses the conversion of nitric oxide（NO） with a low-temperature plasma induced by a catalytic packed-bed dielectric barrier discharge（DBD） reactor. Alumina oxide（Al2O3）,glass（SiO2） and zirconium oxide（ZrO2）, three different spherical packed materials of the same size, were each present in the DBD reactor. The NO conversion under varying input voltage and specific energy density, and the effects of catalysts（titanium dioxide（TiO2） and manganese oxide（Mn Ox） coated on Al2O3） on NO conversion were investigated. The experimental results showed that NO conversion was greatly enhanced in the presence of packed materials in the reactor, and the catalytic packed bed of Mn Ox/Al2O3 showed better performance than that of TiO2/Al2O3. The surface and crystal structures of the materials and catalysts were characterized through scanning electron microscopy analysis. The final products were clearly observed by a Fourier transform infrared spectrometer and provided a better understanding of NO conversion.

关键词： dielectric barrier discharge materials catalysts NO electrical field

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新场气田气井常见堵塞及防治措施

天然气工业 2005年第3期25卷 138-140页

作者：陈单平中国石化西南分公司川西采输处

川西新场气田投入开发以来出现的堵塞现象较多,文章对新场气田常见堵塞类型进行了总结,并通过对完井测试工艺、储层压裂改造、气井生产动态、气井维护措施的研究,分析了形成各种堵塞的原因。认为新场气田上沙溪庙组气井具备形成蜡堵、... 详细信息

川西新场气田投入开发以来出现的堵塞现象较多,文章对新场气田常见堵塞类型进行了总结,并通过对完井测试工艺、储层压裂改造、气井生产动态、气井维护措施的研究,分析了形成各种堵塞的原因。认为新场气田上沙溪庙组气井具备形成蜡堵、水合物堵、压裂液堵的物质条件和物理条件,采气管柱内的粘附节流作用是引起温度、压力突变的主要原因,管内节流最终导致水合物生成和蜡质析出,致使堵塞物多样化;堵塞的发生主要为管内不清洁所致。无论井下还是地面系统,堵塞防治都应立足于井筒或管内净化,在气井建井和开采过程中都应加以考虑。并针对上沙溪庙组气井不同作业阶段提出了相应的堵塞防治措施,对于冬季较普遍的采气外管水合物堵塞采用反吹清管是最为经济有效的。

关键词：气井新场气田水合物采气测试工艺压裂改造完井上沙溪庙组物理条件川西

Chemoselective synthesis of α-carboline derivatives via hypervalent iodine-catalyzed [3+3] annulation under metal-free conditions

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Green Synthesis and Catalysis

Green Synthesis and Catalysis 2024年第2期5卷 112-116页

作者： Shuowen Wang Rong Li shanping chen Guojiang Mao Wen Shao Guo-Jun Deng Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationCollege of ChemistryXiangtan UniversityXiangtan 411105China Department School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China

A strategy for the synthesis ofα-carboline derivatives from indole-3-carboxaldehydes and 3-aminocyclohex-2-enones under metal-free conditions has been *** combination use of phenyliodine(Ⅲ)diacetate(PIDA)and benzoic acid could significantly facilitate the corresponding[3+3]annulation *** newly developed strategy featured unextraordinary chemoselectivity,good functional group tolerance and the preservation of the carbonyl group of the ketone substrates,which offers the possibility for further transformation of the products.

关键词： Hypervalent iodine-catalysis Annulation Metal-free α-Carboline Chemoselectivity

Iron-catalyzed indolo[2,3-c]quinoline synthesis from nitroarenes and benzylic alcohols/aldehydes promoted by elemental sulfur

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Green Synthesis and Catalysis 2022年第1期3卷 95-101页

作者： Rong Li Shuxin Jiang Haolin Zheng Hanwen Lei Zhi Huang shanping chen Guo-Jun Deng Key Laboratory for Green Organic Synthesis and Application of Hunan Province Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of EducationCollege of ChemistryXiangtan UniversityXiangtan 411105China Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates(South China University of Technology) Guangzhou 510640China

An iron-catalyzed strategy for the rapid synthesis of indolo[2,3-c]quinolines has been *** cascade reaction involving alcohol oxidation,nitro reduction,and oxidative annulation was achieved in a *** present protocol was started from mono-functionalized indoles and readily available benzylic alcohols/aldehydes,affording a variety of functionalized indolo[2,3-c]quinolines in satisfactory yields.

关键词： Iron-catalyzed Nitro reduction Alcohol oxidation Oxidative annulation Indolo[2,3-c]quinolines

Nitrogen Removal Performance of Continuous Anoxic/Oxic System Using Activated Sludge and Sludge Biofilms

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Journal of Donghua University(English Edition) 2021年第4期38卷 351-358页

作者： GHORI Faheem Ahmed chen Hong YU Xin SHE Shuaiqi XUE Gang chen shanping SABIHA Yousuf College of Environmental Science and Engineering Donghua UniversityShanghai 201620China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China Shanghai Institute for Design&Research on Environmental Engineering Co. Ltd.Shanghai 200232China College of Basic Medical Sciences Dalian Medical UniversityDalian 116044China

Nitrogen is the most important component for living beings while the excessive discharge of organic and inorganic nitrogen may create severe environmental *** this study,a continuous anoxic/oxic(A/O)reactor adopting activated sludge and sludge biofilms in the anoxic and oxic zones was applied for total nitrogen(TN)and chemical oxygen demand(COD)removal,and the efficiencies of nitrification and denitrification were compared as *** showed that when using activated sludge,the effluent concentrations of NH_(4)^(+)-N,NO_(3)^(-)-N,NO_(2)^(-)-N,TN and COD were inconsistent and fluctuated greatly,and the removal efficiencies of corresponding nitrification,denitrification and TN were also unstable;the obtained average COD removal efficiency was 85%.While using sludge biofilms,the acquired effluent concentrations of NH^(+)_(4)-N,NO^(-)_(3)-N,NO_(2)^(-)-N,TN and COD became stable and *** nitrification,denitrification,TN and COD removal efficiencies were 96%,84%and 65%and 94%,*** community analysis of sludge biofilms indicated that the genus Arcobacter was the major denitrifiers in the anoxic zone with relative abundance of 76.1%,and in the oxic zone the abundances of Acinetobacter,Hydrogenophaga and Nitrospira responsible for complete nitrification were 20.05%,7.6%and 3.7%*** high abundance of nitrifying bacteria and denitrifiers were related with the high and stable nitrogen and COD removal.

关键词： nitrogen removal suspended sludge biofilm anoxic/oxic system

Study on Treatment of Heavy Metals in Fly Ash by a Chelating Agent

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Meteorological and Environmental Research 2016年第2期7卷 55-57页

作者： yu zhaohui zhang ruina bi zhujie chen shanping Shanghai Environmental Sanitary Engineering Design Institute Co. Ltd.Shanghai 200232China

The fly ash from two municipal solid waste incineration plants in Shanghai was treated by the self-developed organic composite chelating agent. The results indicated that the stabilization effect of Pb in the fly ash by the composite chelating agent was the best,and the proportions of its easily leaching form in the two kinds of fly ash decreased from 29. 60% and 27. 49% to 3. 05% and 0. 29% respectively. The leaching toxicity of stabilized fly ash was lower than the limits of Standard for Pollution Control on the Landfill Site of Municipal Solid Waste（ GB 16889- 2008）,so it can be landfilled separately in the landfill site of municipal solid waste.

关键词： Municipal solid waste Fly ash Heavy metal Chelating agent Stabilization China