Chinese Journal of Chemistry

Cover image for Chinese Journal of Chemistry

December, 2010

Volume 28, Issue 12

Pages 2335–2532

  1. Communication

    1. Top of page
    2. Communication
    3. Full Papers
    1. Molecular Diversity of Tonghaosu Analogues, Selective Oxidation of the exo-Cyclic Double Bond of Spiroacetal Enol Ethers and Diasteroselective Synthesis of Spiro-Pyranone (pages 2335–2338)

      Biaolin Yin, Jinqiang Lai, Zeren Zhang and Yulin Wu

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190000

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      Two methods including NBS/AgNO3 system and MCPBA oxidation have been developed for the selective oxidations of the exo-cyclic double bond of spiroacetal enol ethers 2 with multi reactive sites into spiro-pyanones 3 and 4. In addition, possible mechanisms for these conversions are proposed.

  2. Full Papers

    1. Top of page
    2. Communication
    3. Full Papers
    1. Preparation of Copper Chromite by Vaccum Freezing Drying Method and Its Catalytic Activity for Sulfuric Acid Decomposition (pages 2339–2344)

      Tao Su, Dr. Ping Zhang, Laijun Wang and Songzhe Chen

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190001

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      Uniform nano-size CuCr2O4 was prepared by co-precipitation method featured in vacuum freezing drying, which presents good activity and stability to sulfuric acid decomposition reaction in the iodine-sulfur process.

    2. Theoretical Studies on the Halogen Bond between Propargyl Radical and Dihalogen Molecules (pages 2345–2352)

      Yanli Zeng, Xiaoyan Li, Xueying Zhang, Lingpeng Meng and Prof. Dr. Shijun Zheng

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190002

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      There are two kinds of geometries between propargyl radical and dihalogen molecules ClF, BrF and BrCl. Complex (a) involves π-type interaction between X (X=Cl, Br) atom and the midpoint of C(1) –C(2) bond, complex (b) involves π-type interaction between X atom and C(3) atom.

    3. Multi-spectroscopic Study on the Interaction between CdTe Quantum Dots and Bovine Serum Albumin (pages 2353–2358)

      Jingzhou Fan, Juan Zhou, Tingquan Sun, Shiyan Lü, Jinyan Tang and Jianquan Lü

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190003

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      The interaction between CdTe quantum dots (QDs) and bovine serum albumin (BSA) was systematically investigated by fluorescence, UV-vis absorption and circular dichroism (CD) spectroscopy under physiological conditions.

    4. Electrocatalytic Oxidation of Formaldehyde on Copper Oxide Nano-crystalline Modified Glassy Carbon Electrode (pages 2359–2363)

      Zhenhui Jing and Prof. Dr. Xiangqin Lin

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190004

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      A CuO nano-crystalline modified glassy carbon electrode has been fabricated, which gives the redox couple of Cu(II)/Cu(III) at Em of 0.50 V (SCE) in NaOH solution. This redox step can catalyze the oxidation of formaldehyde very efficiently.

    5. Theoretical Studies on Energetic Property and Stability of Pyrazine and Pyridine Derivatives (pages 2364–2370)

      Xiaowei Fan, Chenggang Gu, Gong Chen and Prof. Dr. Xuehai Ju

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190005

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      Density functional calculations at the B3LYP level in conjunction with 6-311G** and aug-cc-pVDZ basis sets were performed to predict the heats of formation (HOFs) and bond dissociation energy of pyrazine and pyridine derivatives.

    6. Synthesis and Characterization of Indium-borate Glass-ceramics Containing Ho0.01Ce0.74Zr0.25O1.995 Nanorods via Incorporation Method (pages 2371–2376)

      Abdolali Alemi, Ali Akbar Khandar, Amin Salem and Leila Kafi-Ahmadi

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190006

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      Glasses in the system 5In2O3·94Na2B4O7 were fabricated via melt quenching technique. The glass transition temperature is 696°C and crystallization temperature 1151°C. A cerium-zirconium mixed oxide Ce0.75Zr0.25O2 and Ho-doped cerium-zirconium mixed oxide were obtained by solid-state method. Differential thermal analysis for glass-ceramic sample is shown glass transition temperature 668°C and crystallization temperature 1159°C. The crystallized glass consists of rod-like crystals with average diameter of about 38 nm dispersed in the glassy regions.

    7. Synthesis of Copper Oxide Hierarchical Nanostructures (pages 2377–2382)

      Dr. Zhen Fang, Xiu Lin, Xia Jian, Xueying Wang, Xianwen Wei and Feng Tao

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190007

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      The copper oxide (CuO) hierarchical nanostructures were synthesized by a simple hydrothermal reaction, using copper(II) acetylacetonate and NaOH as the reactants. The morphologies of CuO nanostructures are strongly influenced by the dosage of copper(II) acetylacetonate, alkali concentration and reaction temperature. The possible formation process was also discussed on the basis of time-dependent experiments.

    8. Synthesis of Mesoporous Silica Immobilized with 3-[(Mercapto or amino)propyl]trialkoxysilane by a Simple One-pot Reaction (pages 2383–2388)

      Farook Adam, Kasim Mohammed Hello and Hasnah Osman

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190008

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      Sodium silicate from rice husk ash (RHA) was transformed to functionalized silica with 3-(mercaptopropyl)trimethoxysilane (MPTMS) or 3-(aminopropyl)triethoxysilane (APTES) via one-pot synthesis to give RHAPrSH and RHAPrNH2. The whole process of dissolution and immobilization was done at room temperature (ca. 31°C).

    9. Novel Method for Preparing NH4NiPO4·6H2O: Hydrogen Bonding Coacervate Selective Self-assembly (pages 2389–2393)

      Wenwei Wu, Shushu Li, Xuehang Wu, Sen Liao and Jinchao Cao

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190009

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      The single phase NH4NiPO4·6H2O was synthesized via a solid-state reaction at room temperature. Characterization results showed that NH4NiPO4·6H2O was a non-layered compound, and its calcined product NH4NiPO4·H2O is a layered compound with an interlayer distance of 0.8370 nm. Polyethylene glycol (PEG)-400 can direct growth of crystal NH4NiPO4·6H2O via hydrogen bonding interaction.

    10. Synthesis of Layered Sodium Manganese Phosphate via Low-heating Solid State Reaction and Its Properties (pages 2394–2398)

      Xuehang Wu, Wenwei Wu, Chen Liu, Shushu Li, Sen Liao and Jinchao Cai

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190010

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      The NaMnPO4·3H2O was synthesized via a solid-state reaction at low-heating. The characterization results showed that NaMnPO4·3H2O was a layered compound, the d5 electrons in the Mn2+ ion were of high-spin state, and NaMnPO4· 3H2O had ferrimagnetic properties.

    11. Highly Efficient InBr3 Catalyzed Michael Addition of Indoles to α,β-Unsaturated Esters (pages 2399–2403)

      Ping Liu, Wei Chen, Kai Ren and Prof. Dr. Lei Wang

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190011

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      A highly efficient synthetic strategy toward Michael addition of indoles to α,β-unsaturated esters has been developed using Lewis acid InBr3 as catalyst. The reactions generated 3-substituted indoles in high yields with excellent regio-selectivity in the presence of catalytic amount of InBr3under mild reaction conditions. The method is simple, efficient and practical.

    12. A Potassium-Lithium Double Salt of Decavanadate Showing Unprecedented (6,8)-Connected Topology (pages 2404–2410)

      Yaokang Lü and Prof. Dr. Yunlong Feng

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190012

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      We synthesized a new potassium lithium double salt of decavanadate, K4Li2[V10O28]·10H2O (1). 1 presents a 3D network with unique (6,8)-connected (32.410.52.6)(34.412.58.64) topology. UV-vis spectrum of 1 reveals a significant broad peak between 230 and 370 nm and solid-state fluorescent spectrum displays a broad fluorescent emission band from 440 to 560 nm upon photo-excitation at 280 nm. Cyclic voltammetry curves indicated three redox processes.

    13. Synthesis and Anticancer Properties of Rare Earth Substituted Tungstophosphoric Polyoxometalate Containing 5-Fluorouracil (pages 2411–2415)

      Xia Liu, Shuaishuai Wang and Prof. Dr. Changgen Feng

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190013

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      Three novel rare earth substituted polyoxometalates containing 5-fluorouracil, K10C4H4FN2O2Pr(PW11O39)2·24H2O, K10C4H4FN2O2Nd(PW11O39)2·12H2O and K10C4H4FN2O2Sm(PW11O39)2·12.5H2O were synthesized. The toxicity of the compounds are lower than that of 5-fluorouracil. And the compounds can inhibit Hela cell significantly.

    14. Highly Efficient Palladacycle/Dihydroimidazolium Chloride System for the Suzuki-Miyaura Cross-Coupling of Aryl Halides (I, Br, Cl) with Arylboronic Acids (pages 2416–2420)

      Haiming Wang, Jinping Wang, Wenwei Qiu, Dr. Fan Yang, Xiaofeng Liu and Jie Tang

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190014

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      A combination of a tertiary amine-based palladacycle and an N-heterocyclic carbene ligand precursor has been applied to catalyze the Suzuki-Miyaura cross-coupling of aryl halides with arylboronic acids. Varieties of electron rich and deficient aryl halides (I, Br, Cl) and arylboronic acids were found to undergo the cross-coupling reaction in good to excellent yields at low catalyst loading of 0.01–1 mol%.

    15. Synthesis of Stereoisomers of Cryptofolione 6′-Mono- and 4′,6′-Di-O-benzyl Ethers (pages 2421–2427)

      Gowravaram Sabitha, Vangala Bhaskar, S. Siva Sankara Reddy and J. S. Yadav

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190015

    16. Highly Efficient Oxidative Bromination of Alkanes with the HBr-H2O2 System in the Presence of Catalyst (pages 2428–2432)

      Yujin Li, Jie Ju, Jianhong Jia, Weijian Sheng, Liang Han and Jianrong Gao

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190016

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      A simple, effective, environmentally friendly method was researched for bromination of alkanes in good yield with HBr as the origin of bromine.

    17. Synthesis and Biological Activity Test of Some New Five Membered Heterocycles (pages 2433–2440)

      Qingchun Xia, Dongfang Xu, Prof. Qizhuang He, Xingyu Li and Dazhi Sun

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190017

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      A new series of five membered heterocyclic compounds were synthesized using alkylhydrazides as the starting materials. All the compounds were evaluated for in vitro antibacterial activity and antitumor activity.

    18. An Expedient Approach to the Benzopyran Core: Application to Synthesis of the Natural Products (±)-Xyloketals and (±)-Alboatrin (pages 2441–2446)

      Zhongliang Xu, Yiying Li, Bingtai Lu, Jiyan Pang and Prof. Dr. Yongcheng Lin

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190018

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      A mild and efficient protocol for the synthesis of the benzopyran ring has been described and a series of chromans compounds is reported. The yield is from 72% to 95%. The diadduct tended to angular product and showed good regioselectivity. This strategy was applied for the benzopyran derived natural products (±)-xyloketals and (±)-alboatrin.

    19. Synthesis, Radiolabelling and in vitro Stability Study of 99mTc(CO)+3 Labeled Dendrimer PAMAM-Folic Acid Conjugate (pages 2447–2450)

      Yuanqing Zhang, Xiaoping Xu, Yanhong Sun and Yumei Shen

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190019

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      Dendrimer polyamidoamine generation five-folic acid conjugate was synthesesed and radiolabelled with fac-[99mTc(CO)3(H2O)3]+, and its in vitro stability was evaluated further. Both of the labeling yield and radiochemical purity of the G5-FA-DTPA-99mTc(CO)3 conjugate exceeded 95%. More than 95.7% and 93.1% of the conjugate still keeps its original structure in PBS and new-born calf serum solution, respectively.

    20. Sodium Acetate Catalyzed Multicomponent Cyclization of Aromatic Aldehydes, Acetone and Meldrum Acid (pages 2451–2454)

      Lin An, Feng Yang, Rong Yao and Prof. Dr. Chaoguo Yan

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190020

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      The sodium acetate catalyzed three-component reaction of aromatic aldehyde, acetone and Meldrum acid or spirolactone at room temperature gave stereospecific 7,11-cis-diaryl-2,4-dioxaspiro[5,5]undecane-1,5,9-triones in a very efficient manner.

    21. Synthesis, Photophysical and Electrochemical Characterization of the Heteroleptic Iridium Complexes with Modified Ancillary Ligand by Carrier-transporting Groups (pages 2455–2462)

      Aihui Liang, Yafei Wang, Yu Liu, Hua Tan, Yunbo Cao, Liang Li, Xiaoshuang Li, Wenjie Ma, Meixiang Zhu and Prof. Dr. Weiguo Zhu

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190021

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      Two functionalized phosphorescent iridium(III) complexes with carrier-transporting groups have been synthesized and characterized. Both of them exhibited a bright red emission at 612 nm with fluorescent quantum efficiency over 0.56 in dichloromethane. Compared to (Piq)2Ir(Pic), they presented better optophysical and electrochemical properties.

    22. FeCl3-Catalyzed Condensation of 2-Naphthol and Aldehydes under Solvent-Free Reaction Conditions: An Efficient and Green Alternative for the Synthesis of 14-Aryl(Alkyl)-14-H-dibenzo[a, j]xanthenes (pages 2463–2468)

      Bo Wang, Pinghua Li, Yicheng Zhang and Lei Wang

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190022

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      An iron-catalyzed condensation of 2-naphthol with aldehydes has been described. In the presence of a catalytic amount of iron(III) chloride (5 mol%), the condensation reaction of 2-naphthol and aldehydes underwent smoothly to generate the corresponding products in good to excellent yields under base-, acid-, ligand-, additive-, and solvent-free reaction conditions.

    23. Task Specific Onium Salt as Soluble Support in Multicomponent Synthesis of 4-Aryl-2-amino-3-ethoxycarbonyl-naphthopyrans (pages 2469–2473)

      Cuifen Lu, Li Zhang, Guichun Yang and Zuxing Chen

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190023

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      In this paper was presented an application of task specific onium salt as soluble support in multicomponent synthesis of 2-amino-3-ethoxycarbonyl-naphthopyrans. The starting task-specific onium salt was functionalized in good yield with chloroethyl alcohol, followed by three steps containing esterification, three components reaction and cleavage from onium salt to afford naphthopyrans in 60%-88% overall yields. All of the products were characterized by IR, 1H NMR, 13C NMR and MS techniques.

    24. New Oenotheralanosterol A and B Constituents from the Oenothera biennis Roots (pages 2474–2478)

      Ateeque Ahmad, Mohd Ali and Sudeep Tandon

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190024

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      Two new compounds oenotheralanosterol A and B along with four known compounds have been isolated from the roots of Oenothera biennis. Their structures have been elucidated with the help of 300 MHz NMR using 1D and 2D spectral methods viz: 1H and 13C NMR, 1H-1H COSY, 1H-13C HETCOR and DEPT aided by EIMS, ESI Mass and IR spectroscopy.

    25. Efficient Preparation of the Key Intermediate in Corey's Tamiflu Synthesis (pages 2479–2483)

      Prof. Dr. Zhangyong Hong, Qi Cui, Jiannan Peng, Huan Hu and Zeming Chen

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190025

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      A very efficient two-step synthesis was developed to prepare the key intermediate in Corey's Tamiflu synthesis. DBU was used as a multifunctional catalyst for a series of reactions in a one pot procedure. The new synthesis was featured by the good availability of the starting material and the ease of the synthetic steps. This method might be practical for large scale preparations.

    26. Selective Adsorption of Co(II) Ions by Whisker Surface Ion-Imprinted Polymer: Equilibrium and Kinetics Modeling (pages 2483–2488)

      Jianming Pan, Wei Guan, Zulei Zhang, Xue Wang, Chunxiang Li and Prof. Dr. Yongsheng Yan

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190026

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      Based on sodium trititanate whisker as support particles, the surface ion-imprinted polymer (S-IIP) was synthesized for the selective adsorption of Co(II) ions from aqueous solution. Characterization of S-IIP was achieved by FTIR spectra and SEM micrographs. Kinetic properties were successfully investigated by the pseudo-first-order model and pseudo-second-order model, and a chemisorption process as the essential adsorption step was also proposed.

    27. Glucose Biosensor Based on the Fabrication of Glucose Oxidase in the Bio-Inspired Polydopamine-Gold Nanoparticle Composite Film (pages 2489–2493)

      Yinyin Wei, Ningdan Zhang, Ying Li, Prof. Dr. Guoyue Shi and Prof. Dr. Litong Jin

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190027

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      A highly efficient enzyme immobilization method has been developed for electrochemical biosensors using polydopamine films with gold nanoparticles embedded. This bio-inspired enzyme fabrication method can be performed in very mild conditions and stored in a long time with high bioactivity. The results show amperometric glucose biosensor exhibited high sensitivity, wide linear range, good reproducibility and stability.

    28. Effect of pH on the Metabolism of Aconitine under Rat Intestinal Bacteria and Analysis of Metabolites Using HPLC/MS-MSn Technique (pages 2494–2500)

      Xiye Wang, Zifeng Pi, Wenlong Liu, Yufeng Zhao and Prof. Dr. Shuying Liu

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190028

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      HPLC chromatogram of metabolites of aconitine at pH 7. 1. benzoylaconine, 2. 15-deoxybenzoylaconine, 3. 8-octenoyl-benzoylaconine, 4. 10-OH-aconitine, 5. 15-deoxyaconine, 6. aconitine, 7. 8-hexenoyl-benzoylaconine, 8. 8-propionyl-benzoylaconine, 9. 8-butyryl-benzoylaconine, 10. deoxyaconitine, 11. 8(3-hydroxyl)-butyryl-benzoylaconine.

    29. CuO Crystalline Modified Glassy Carbon Electrodes for Anodic Amperometric Determination of Hydrogen Peroxide (pages 2501–2506)

      Prof. Dr. Xiangqin Lin and Zhenhui Jing

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190029

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      Under cyclic voltammetric conditions Cu(OH)2 crystalline was deposited from solution on the surface of GCE, and it can be transferred to a novel cubic opaque CuO crystalline by second step of cyclic voltammetry in pH 12 NaOH. The final electrode (nano-CuO/GCE) can catalyze the oxidation (as well as the reduction) of H2O2, showing three-part catalytic mechanism in the range of pH 7 to 14.

    30. A Hydrogen Peroxide Biosensor Based on Room Temperature Ionic Liquid Functionalized Graphene Modified Carbon Ceramic Electrode (pages 2507–2512)

      Yaping He, Prof. Dr. Jianbin Zheng, Kuangtian Li, Qinglin Sheng and Ningqiang Qiao

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190030

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      The cyclic voltammogram of Hb showed a pair of well-defened, quasi-reversible redox peaks with Epa= −0.209 V and Epc= −0.302 V (vs. SCE) in pH 7.0 PBS at the scan rate of 100 mV/s. When the scan rate increased, the redox potentials (Epa and Epc) of Hb nearly shift, and the redox peak current changed linearly (inset): Ipa (µA)=3.316+0.0127v, r=0.9980; Ipc (µA)=−1.349−0.015v, r=0.9990.

    31. Rapid Extraction of Essential Oil from Dried Cinnamomum cassia Presl and Forsythia suspensa (Thunb.) Vahl by Ionic Liquid Microwave Extraction (pages 2513–2519)

      Yujuan Zhai, Shuo Sun, Daqian Song, Ye Sun, Yupu Zhang, He Liu, Hanqi Zhang and Prof. Dr. Aiming Yu

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190031

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      Ionic liquid was used as the microwave absorption medium to extract essential oils from dried Cinnamomum cassia Presl and Forsythia suspensa (Thunb.) Vahl, and the ionic liquid microwave extraction was developed. The proposed method was compared with other methods, including hydrodistillation, microwave hydrodistillation, solvent-free microwave extraction and improved solvent-free microwave extraction.

    32. Preparation for Optimal Conformation of Lysozyme with Nanodiamond and Nanosilica as Carriers (pages 2520–2526)

      Victor Wei-Keh Wu and Fumi Kure(Ko)

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190032

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      Lysozyme molecules lay on the surfaces of nanoparticles and can keep their helicities as well as activities of 90% if they are optimally loaded on the surface of nanodiamond (ND) at 150 or around threshold 190 nmol/L, and on the surface of nanosilica at 700 nmol/L of lysozyme concentrations. The rough surface of ND causes that the adsorbed lysozyme molecule can better keep its helicity, even at extremely diluted concentration, and shows higher adsorption capability.

    33. Poly(methyl methacrylate)/Methacryl-POSS Nanocomposites with Excellent Thermal Properties (pages 2527–2532)

      Yuancheng Qin, Yutie Bi, Hongbo Ren, Fanghua Zhu, Prof. Dr. Meiming Luo and Lin Zhang

      Version of Record online: 7 JAN 2011 | DOI: 10.1002/cjoc.201190033

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      Poly(methyl methacrylate) (PMMA) nanocomposites containing (methacryloxy)propyl polyhedral oligomeric silsesquioxane (methacryl-POSS) were prepared by bulk-polymerization process. The thermal properties of PMMA nanocomposites are improved significantly. The glass transition temperature and thermal decomposition temperature of the nanocomposite show significant increases by 58 and 110°C respectively. The samples with a certain shape can easily be obtained and demonstrate excellent optical transparency in visible region.