Chinese Journal of Chemistry

Cover image for Chinese Journal of Chemistry

May, 2009

Volume 27, Issue 5

Pages 863–1014

  1. Full Papers

    1. Top of page
    2. Full Papers
    3. Note
    1. Synthesis and Electrochemical Performance of Ti4+ Doped LiV3O8 (pages 863–867)

      Junli SUN, Lifang JIAO, Li LIU, Xin WEI, Lin YANG, Sichen LIU, Huatang YUAN and Yongmei WANG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990145

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      A low-temperature reaction route for synthesis of LiTiyV3−0.8yO8 is reported in this work. The LiTiyV3−0.8yO8 powders with high specific capacity have been synthesized via a peroxide sol-gel method, which have good morphology, small particle size, and good particle size distribution. LiTi0.04V2.968O8 shows a better electrochemical performance, which exhibits both the highest initial discharge capacity (348.9 mAh·g−1) and the best cycle performance. The effects of Ti substitute for V on the structure, morphology, and electrochemical properties of samples were studied in detail.

    2. Theoretical Evaluation of the Global and Local Electrophilicity Patterns to Characterize Hetero Diels-Alder Cycloaddition in the Synthesis of Isoxazolo[4,5-e](1,2,3,4-tetrazine) (pages 868–876)

      Pratibha SHARMA, Ashok KUMAR, Jitendra SINGH and Vinita SAHU

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990146

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      The global and local electrophilicity patterns have been evaluated on a series of cycloaddition reactions to assess the reaction pathways (NDAC/IEDDAC) using the absolute scale of electrophilicity proposed by Parr et al. Regional electrophilicity at the active sites of the reagents involved in Diels-Alder processes has been described on a quantitative basis using local electrophilicity index i.e. Fukui function. Good qualitative/quantitative comparison was found between molecular energy gaps and global electronic parameters, which have been employed to assess the cycloaddition pathways successfully.

    3. Synthesis and Crystal Structures of Four Metal(II) Complexes with 1-(4-Hydroxyphenyl)-5-mercaptotetrazole Ligand (pages 877–881)

      Shuguang ZHANG and Yunlong FENG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990147

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      Four new M(II) (Co, Mn and Zn) complexes with 1- (4-hydroxyphenyl)-5-mercaptotetrazole ligand have been synthesized and structurally determined by X-ray structure analyses. Among these complexes, the M(II) centers are all six-coordinated in an octahedral coordination geometry, and the HL ligands bond to M(II) centers via nitrogen atoms in 1, 2, while via sulfur atoms in 3, 4, respectively.

    4. Fullerene[51] with Quasi-planar Tetracoordinate Carbons and Its Derivatives (pages 882–886)

      Congjie ZHANG, Wenhong JIA and Zexing CAO

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990148

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      Several novel classes of fullerenes containing quasi-planar tetracoordinate carbons were constructed and predicted to be stable theoretically.

    5. Electrochemical Sensor for Oxidation of NO Based on Au-Pt Nanoparticles Self-assembly Film (pages 887–890)

      Jia XIE, Zhihui YU and Dingguo XIA

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990149

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      Au-Pt bimetallic nanoparticles film used as an efficient electrochemical sensor was prepared by self-assembled Au-Pt bimetallic nanoparticles on a glassy carbon (GC) substrate using thioglycolic acid as a linker. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) showed that the Au-Pt nanoparticles self-assembly film was dense and uniform. Electrochemical experiments revealed that Au-Pt bimetallic nanoparticles film/GC electrode showed high electrocatalytic activity to the oxidation of nitric oxide.

    6. Silver Nanowire Film: Green Synthesis and Its Surface Enhanced Raman Scattering (pages 891–894)

      Xiucheng TAO, Lei LU, Mingwang SHAO and Xiaojia HUANG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990150

      One-step preparation of silver nanowires on the silicon wafer has been performed successfully employing silver nitrate as silver source. The procedure was operated at room temperature employing an environmentally benign compound of ethylene glycol as reductive agent, which is a completely green route. The as-prepared products were characterized with X-ray diffraction, and scanning electron microscopy and energy dispersive X-ray spectrum, which reveals uniform silver nanowires with average diameter of 20 nm.

    7. Asymmetric Epoxidation of Terminal Olefins with Binaphthyl Strapped Porphyrin Catalysts: (-( Stacking Interaction and Steric Effects on the Enantioselectivities (pages 895–899)

      Qizhi REN, Aiqing WANG, Shuangyan LIU and Xiaojian DING

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990151

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      For efficient asymmetric epoxidation of styrene derivatives catalyzed by two porphyrins with similar chiral auxiliaries, the steric effect of the binaphthyl handle and the π-π stacking interaction between substrates and catalysts might be two factors for the dramatic reversed enantioselectivities.

    8. Theoretical Study on Structures and Properties of N2O···HOCl Complexes (pages 900–906)

      Ku YUAN, Yanzhi LIU, Weichao MA, Huian TANG, Yuancheng ZHU and Ji ZHANG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990152

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      The structures and the electron properties of the complexes formed between N2O and HOCl were studied via the DFT-B3LYP and the MP2 methods at 6-311++G∗∗ level.

    9. Combinatorial Approach to Synthesize and Optimize Gd2O3:Tb Nanocrystals (pages 907–910)

      Xiaoyu ZHANG and Qingsheng WU

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990153

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      Combinatorial approach was first used to synthesize and optimize luminescent Gd2O3:Tb nanocrystals effectively and successfully. This bran-new strategy for discovery and optimization of nanomaterials will bring new changes in Nano-ST fields.

    10. Classification of Rat FTIR Colon Cancer Data Using Wavelets and BPNN (pages 911–914)

      Cungui CHENG, Wei XIONG and Yumei TIAN

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990154

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      The FTIR data collected from 36 normal SD rats, 60 1,2-DMH- induced SD rats, and 44 second generation rats of those induced rats were first preprocessed. Continuous wavelet transform was used in the analysis of FTIR. The detail signal, L1, is almost all the high frequency signal. Difference between a few adjacent detail signals are little. L5, L10 and L15 are sensitive to the change of the absorption frequency in the spectra. They have strong response to three feature peaks of the original signal. So the detail signals of the three scales were used as feature vector space. 12 feature variants were extracted using continuous wavelet analysis. Based on BPNN classification, all spectra were classified into two categoriesnormal and abnormal ones. The accuracy values of identifying normal, dysplastic, early carcinoma, and advanced carcinoma were 100%, 95%, 97.5%, and 100%, respectively.

    11. Synthesis and Characterization of Amino-functionalized Meso- porous Silicate MCM-41 for Removal of Toxic Metal Ions (pages 915–919)

      Sepehrian HAMID, Waqif-Husain SYED and Ghannadi-Maragheh MOHAMMAD

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990155

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      Amino-functionalized MCM-41 has been prepared by grafting amino containing functional groups onto mesoporous silicate MCM-41 and sorption behavior for 18 metal ions on this sorbent has been studied and discussed.

    12. Large-scale Hydrothermal Synthesis and Characterization of Size-controlled Lanthanum Hydroxide Nanorods (pages 920–924)

      Ran YI, Ning ZHANG, Rongrong SHI, Yongbo LI, Guanzhou QIU and Xiaohe LIU

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990156

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      Uniform lanthanum hydroxide nanorods with diameters in the range from 3 to 10 nm and length up to 300 nm were successfully synthesized in large quantities through a facile hydrothermal synthetic method, in which soluble lanthanum nitrate was used to supply the lanthanum source and triethylamine (TEA) was used as both alkaline agent and complexing agent.

    13. Three-component Synthesis of Homoallylic Amines Catalyzed by Phosphomolybdic Acid in Water (pages 925–929)

      Zhengfeng XIE, Guilong LI, Gang ZHAO and Jide WANG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990157

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      The three-component reactions of aromatic aldehydes, amines and allyltributylstannane in water catalyzed by phosphomolybdic acid (PMA), underwent smoothly to afford the corresponding homoallylic amines in high yields at room temperature.

    14. Enantioselective Direct Aldol Reactions Catalyzed by Cinchonine-derived Prolinamides (pages 930–936)

      Jing ZHAO, Aijun CHEN and Quanzhong LIU

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990158

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      Highly enantioselective aldol reactions catalyzed by cinchonine-derived prolinamides are reported. Both cyclic and acyclic ketones were reacted with various aldehydes furnishing the desired aldol products in up to 90% yield with excellent enantioselectivities (up to 95%) and moderate diastereoselectivities (up to 3.6:1) in the case of cyclic ketones. A possible mechanism that elucidates the excellent observed enantioselectivities is presented.

    15. Effect of Electronic Factor in Ru-phosphine-diamine Complexes on Selective Hydrogenation of CC and CO Bonds (pages 937–943)

      Yu ZHANG, Xiaojun YU, Changbin YU, Yuqing XIA, Ruixiang LI, Hua CHEN and Xianjun LI

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990159

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    16. One-step Preparation and Antibacterial Property of Poly(N-iso-propyl-acrylamide) Grafted Poly(acrylonitrile/styrene) Microspheres Immobilized with Silver Nanoparticles (pages 944–948)

      Jiao FENG, Liheng FAN, Hong CHU, Wanbin XIONG, Jinqiang JIANG and Mingqing CHEN

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990160

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      The silvered microspheres prepared with poly(N-isopropylacrylamide) grafted poly-(acrylonitrile/styrene) (PNIPAAm-g-PAN/PSt) microspheres as substrate and AgNO3 as metal source by a one-step method showed activity against Gram-negative bacteria.

    17. Synthesis and Biological Activities of Schiff Bases of 3-Amino-1H-1,2,4-triazole (pages 949–952)

      Xiaohong SUN, Yuanfa LIU, Shuzhe CHEN, Bang CHEN, Yingqi JIA and Zhengfang ZENG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990161

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      Eight new Schiff bases have been synthesized by 3-amino-1H-1,2,4-triazole with substituted benzaldehydes using glacial acetic acid as solvent. The biological activities of these title compounds to four vegetable pathogens were also tested, showing that most of them possess high fungicidal activities.

    18. Design, Synthesis and Anti-HIV Integrase Evaluation of 1,2,3- Triazol-4-yl-substituted 1,4-Dihydro-4-oxo-1,5-napthyridine- 3-carboxylic Acids (pages 953–962)

      Jia ZENG, Xiuhua LÜ, Chengchu ZENG, Liming HU and Rugang ZHONG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990162

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      Copper(I)-catalyzed terminal alkyne-azide 1,3-cycloaddition reaction has emerged as one of the main strategies for the rapid creation and screening of a small molecular library. The present work describes the design and synthesis of a series of 1,2,3-triazol-4-yl-substituted 1,4-dihydro-4-oxo-1,5-napthyridine-3-carboxylic acids in which the hydrophobic and hydrophilic domains were efficiently incorporated by a click reaction. The structures of the desired products 8 and 12 were characterized by spectroscopic methods and their HIV integrase inhibitory activities were also screened.

    19. Heck Reactions Catalyzed by Palladium Complex Supported on 4-Aminopyridine Resin (pages 963–967)

      Xiangmei WU and Wen PEI

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990163

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      Phosphine-free Heck arylations of olefin with a wide variety of activated and non-activated aryl or heteroaryl halide catalyzed by a palladium complex supported on 4-aminopyridine resin has been accomplished with high yields. This method has the advantage of environmental benignity, generality, implicity and potential for recycling of the resin catalyst. The reaction conditions were discussed and the products were characterized by 1H NMR, 13C NMR, IR spectra and elemental analysis.

    20. A New Strategy for the Synthesis of 3-Acyl-coumarin Using Mesoporous Molecular Sieve MCM-41 as a Novel and Efficient Catalyst (pages 968–970)

      Majid M. HERAVI, Nargess POORMOHAMMAD, Yahia Sh. BEHESHTIHA, Bita BAGHERNEJAD and Reihaneh MALAKOOTI

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990164

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      A simple benign route to the synthesis of 3-acyl-coumarin is described via condensation of ethyl acetoacetate or ethyl benzoylacetate with ortho-hydroxyarylaldehyde using MCM-41 as an efficient catalyst in very good yields.

    21. 2,4-Dicyano-3-diethylamino-9,9-diethylfluorene Based Blue Light-emitting Star-shaped Compounds: Synthesis and Properties (pages 971–977)

      Xiaohang CHEN, Xiaopeng CHEN, Zujin ZHAO, Ping LÜ and Yanguang WANG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990165

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      Two new star-shaped molecules 1 and 2 with moderate fluorescence and high thermal stabilities as well as charge transfer properties are reported.

    22. Transfer Hydrogenation of Acetophenone Catalyzed by in situ Generated 2,6-Bis(5-thioxo-4,5-dihydro-1,2,4-triazole-3-yl)pyridine-ruthenium(II) Complexes (pages 978–982)

      Ahmet CET?N and Osman DAYAN

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990166

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      The in situ prepared 2,6-bis(5-thioxo-4,5-dihydro-1,2,4-triazol-3-yl)pyridine-Ru(II) complexes have been employed as catalysts for the transfer hydrogenation of acetophenone. Significant differences in reactivity were observed according to the type of 2,6-bis(5-thioxo-4,5-dihydro-1,2,4-triazol-3-yl)pyridines.

    23. An Efficient Method for Racemization of (S)-3-Carbamoylmethyl-5-methylhexanoic Acid (pages 983–986)

      Ting WU, Man GAO, Bo YE and Yongjia SHEN

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990167

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      (S)-3-Carbamoylmethyl-5-methylhexanoic acid was heated in xylene to convert to 4-isobutyl-piperidine-2,6-dione, which was hydrolyzed in aqueous solution of sodium hydroxide to afford the racemate.

    24. Cyclocondensation Reations of 3-Amino-1,2,4-triazole with 3-(Benzylidene)-6-fluoro-thiochroman-4-ones to Tetracyclically Fused Dihydropyrimidines and Pyrimidines (pages 987–992)

      Zhengyue MA, Guoying YAN, Shiguo ZHU, Gengliang YANG and Duqiang LUO

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990168

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      The effects of reaction temperature, solvents, reaction time and 7-aryl on the cyclocondensation reactions of 3-amino-1,2,4-triazole with 3-(benzylidene)-6-fluorothiochroman-4-ones were studied. And the cyclocondensation mechanism for producing tetracyclically fused dihydropyrimidines and pyrimidines was discussed.

    25. Synthesis and Reactivity of Group 6 Metal Carbonyl Complexes with Bis(pyrazol-1-yl)methanes Modified by the Vinyltin Groups (pages 993–998)

      Zhenkang WEN, Zhi YANG, Haibin SONG and Liangfu TANG

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990169

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      Bis(pyrazol-1-yl)methane ligands with the vinyltin groups on the methine carbon have been synthesized and their related reactions with M(CO)5THF (M=Mo and W) have been investigated.

    26. Preparation and Characterization of Olaquindox Polyclonal Antibody (pages 999–1006)

      Huilian CHE, Baoxia SHI, Jinlan CHEN, Xuejia ZHU and Jiguo HE

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990170

      2-[N-(2-Hydroxyethyl)-carbamoyl]-3-methyl-oxoquinoxaline-1,4-oxides (OLA) was first mono-esterificated by succinic acid anhydride, and was then turned into a derivative with carboxyl. The synthetic product was purified by recrystallization with a yield of 52.47%. Its chemical structure was determined by NMR, IR and MS. The determined structure was used to synthesize OLA hapten, which had the molecular structural characteristics of OLA. High-purity OLA polyclonal antibody has been obtained by saturated ammonium sulfate and ion-exchange chromatography.

    27. Catalytic Oxidative Decarboxylation of Some Benzylcarboxylic Acid Derivatives by a New Iron(III) Schiff Base Complex (pages 1007–1011)

      Morteza MONTAZEROZOHORI, Masoud NASR-ESFAHANI and Parisa AKHLAGHI

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990143

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      A quadridentate Schiff base ligand of N,N′-bis(2-hydroxy-α-methylbenzylidene)ethylene-diamine (HMBEDA) and its new iron(III) complex were synthesized and identified by analytical, spectral data (1H NMR, 13C NMR FTIR and UV-visible) and molar conductance. A rapid and efficient homogeneous oxidative decarboxylation of some benzylcarboxylic acid derivatives was carried out by a catalytic amount of iron(III) Schiff base complex in chloroform, using tetrabutylammonium periodate as a mild oxidant in good to excellent yields at room temperature.

  2. Note

    1. Top of page
    2. Full Papers
    3. Note
    1. Immediate Oxidation of Sulfides to Sulfoxides with Zinc Dichromate Trihydrate under Solvent Free Condition (pages 1012–1014)

      H. HASSANI

      Article first published online: 4 JUN 2009 | DOI: 10.1002/cjoc.200990144

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      Various types of sulfides were converted to sulfoxide by zinc dichromate trihydrate in high yields and rates under solvent-free conditions.

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