Chinese Journal of Chemistry

Cover image for Vol. 30 Issue 2

February, 2012

Volume 30, Issue 2

Pages 209–465

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      Cover Picture: Chiral (6,3) Network Assembled by Lanthanide and Changeful Dihydroxyfumaric Acid (Chin. J. Chem. 2/2012) (page 209)

      Manbo Zhang, Jing Lü and Ruixiang Hu

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201290005

      Thumbnail image of graphical abstract

      The cover picture shows a chiral (6,3) network assembled by lanthanide and 2,2-dihydroxylmalonate. X-ray analysis re-vealed that each lanthanide center is surrounded by three 2,2-dihydroxylmalonate ligands with bis-chelate coordination mode to give rise to a building unit of turbine blade structure. These buiding units alternatively connect adjacent units with same configuration and extend the linkage on ab plane to form the chiral two-dimensional framework. The construction of the resultant chiral network demonstrates that 2,2-dihydroxylmalonate is a perfect ligand to build some chiral metal-organic framework with potential optical properties. More details are discussed in the article by Zhang et al. on page 228–232.

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    1. Masthead (page 210)

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201290006

  3. Contents

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    1. Contents: Chin. J. Chem. 2/2012 (pages 211–221)

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201290007

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    1. Further Masthead Information (page 222)

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201290008

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    1. Copper Supported on the SiO2 Nanoparticle in Click Chemistry: An Alternative Catalytic System for Regioselective and One-Pot Synthesis of 1,2,3-Triazoles and β-Hydroxytriazoles (pages 223–227)

      Maryam Ciyabi Hashjin, Roghayeh Ciyabi, Maryam Baharloui, Ghaffar Hosseini and Hamed Tavakoli

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201100231

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      In this work, readily prepared copper supported on the SiO2 nanoparticles has been found to effectively catalyze the 1,3-dipolar cycloaddition of a variety of azides, alkynes, epoxides and sodium azide, furnishing the corresponding 1,2,3-triazoles and β-hydroxytriazoles.

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    1. Chiral (6,3) Network Assembled by Lanthanide and Changeful Dihydroxyfumaric Acid (pages 228–232)

      Manbo Zhang, Jing Lü and Ruixiang Hu

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100129

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      Seven chiral lanthanide coordiantion polymers, formulated as [Ln2(L)3(H2O)6]n·n/3H2O, were hydrothermally synthesized by assembling lanthanide ions and changeful dihydroxyfumaric acid. Topological analysis revealed compounds 17 adopted honeycomb-like (6,3) nets with [Ln(L)3]3− as three-connected building nodes.

    2. Theoretical Studies on the Hydrogen-bonding and π-Stacking Interactions in the m-Nisoldipine Polymorphism Dimers (pages 233–240)

      Min Zhu, Lingpeng Meng, Shijun Zheng, Jing Wang and Yanli Zeng

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201180468

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      The intermolecular interactions in the dimers of m-nisoldipine polymorphism were studied by B3LYP calculations and quantum theory of "atoms in molecules" (QTAIM) studies.

    3. Structural Effects of L16Q, S20G, and L16Q-S20G Mutations on hIAPP: A Comparative Molecular Dynamics Study (pages 241–248)

      Mian Wang, Jipeng Yang, Jianyi Wang and Xiaojuan Wang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201100413

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      The molecular dynamics studies on WT hIAPP show that residues 15–17 always maintain a stable α-helix structure, residues 20–25 structurally fluctuate between turn and 5-helix, and residues 26–29 mainly adopt coil and bend structures. The replacement of leucine16 by glutamine stabilizes the helix structure of residues 15–17 and 20–23 of hIAPP monomer, which is supposed to be responsible for the resistance of the aggregation. The substitution of serine20 by glycine drives residues 15–17 and 20–29 of hIAPP to transform from helix structure to β-strands or coil structures with higher extension and flexibility, which may promote the aggregation of hIAPP.

    4. A Novel and Simple Molecular Probe Sensing Hg(II) in Living Cells by Chelation-enhanced Fluorescence (pages 249–253)

      Qinghua Meng, Sen Cheng, Minbo Lan and Gang Wei

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100120

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      A novel and simple molecular probe P1 was prepared from 1,1′-(1,3-phenylene)-bis(2,4-pentanedionato) for sensing Hg(II) via chelation-enhanced fluorescence mechanism.

    5. A Clicked Tetrathiafulvalene-oxyquinoline Dyad as an Optical and Electrochemical Zn2+ Probe (pages 254–258)

      Bangtun Zhao, Lianwei Liu, Xiaochuan Li and Guirong Qu

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201100344

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      A novel clicked tetrathiafulvalene derivative 3 bearing two 8-oxyquinoline groups was synthesized for the selective detection of Zn2+ through optical and electrochemical changes.

    6. Highly Sensitive Functionalized Conducting Copolypyrrole Film for DNA Sensing and Protein-resistant (pages 259–266)

      Zhihong Zhang, Guijuan Li, Fufeng Yan, Zhonghou Zhang and Shaoming Fang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201100078

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      In order to exploit the applications of polypyrrole (PPy) derivatives in biosensors and bioelectronics, the different immobilization mechanisms of biomolecules onto differently functionalized conducting PPy films were investigated. For differently functionalized copolymers, the immobilization mechanisms of DNA are various. Moreover, few BSA molecules could anchor onto the PPy and its copolymers surfaces, suggesting that this kind of conducting polymers can be applied as the protein-resistant material.

    7. Selective and Sensitive Fluorescent Chemosensors for Cu2+ Ion Based upon Bis-1,8-naphthalimide Dyads (pages 267–272)

      Huiling Dai and Hui Xu

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180481

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      Three chemosensors 5c5e exhibited high selectivity and sensitivity for Cu2+ ion over other heavy and transition metal ions with fluorescent quenching (green to colourless).

    8. Hydrothermal Preparation, Crystal Structure and Properties of {[ZnTCPP(EtOH)][Zn(en)]2}n(EtOH)2n with a Novel Two-Dimensional (2-D) Motif (pages 273–276)

      Wentong Chen

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180485

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      A new porphyrin {[ZnTCPP(EtOH)][Zn(en)]2}n(EtOH)2n has been prepared via a solvothermal reaction and structurally characterized by a single-crystal X-ray diffraction. The title complex features a novel 2-D layered structure. The spectral data of FT-IR, UV-vis and fluorescence are reported.

    9. Studies on Mechanochemical Method to Synthesize LDH Nanoparticles (pages 277–282)

      Chunxiao Jia, Xiaoqing Zhang and Shuping Li

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180476

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      It can be concluded that using the mixture of water and ethanol as solvent makes the particles smaller and well-dispersed, and the shape of particles changed from hexagon to sphere-like; first of all, the monodispersity has greatly improved.

    10. Immobilization of Glucose Oxidase on Ordered Macroporous Silicas Functionalized with Amino Group (pages 283–287)

      Quanzhou Wu, Jianfeng He, Jingjia Zhang and Jiming Ou

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180482

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      A novel glucose oxidase immobilized on 3DOM material has been prepared by firstly preparation of hybrid 3DOM SiO2-NH2 materials using colloidal crystal method, and following covalent immobilization of glucose oxidase on the pore walls of the 3DOM materials. The materials were characterized by SEM, FTIR, DSC and BET techniques. SEM observation shows that the macropores are highly ordered and are interconnected by small windows. FTIR measurement shows that there are amino and organic groups in the pore walls. The surface area of the 3DOM SiO2-NH2 material is about 10.2 m2/g. The loaded amount of enzyme is increased with amino content in the materials. The immobilized enzyme has high activity, thermal stability and can be reused.

      Corrected by:

      Erratum: Erratum: Immobilization of Glucose Oxidase on Ordered Macroporous Silicas Functionalized with Amino Group

      Vol. 30, Issue 12, 2879, Article first published online: 27 DEC 2012

    11. Preparation of Ultrafine TATB and the Technology for Crystal Morphology Control (pages 293–298)

      Li Yang, Xiaoting Ren, Tiecheng Li, Shiwei Wang and Tonglai Zhang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180478

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      The ultrafine TATB particles were prepared by solvent and non-solvent method with different surfactants. Smoothing spherical TATB particles (about 50 nm) with uniform and narrow particle-size distribution were obtained by using 1.06 g raw materials TATB and injecting 0.014% polyoxyethylene ether (P).

    12. Electrochemical Property of Manganese Oxide Nanobelt Bundles with Layered Structure (pages 299–302)

      Liping Kang, Yishu Jiang, Xiuhua Tang, Mingyang Yang and Zonghuai Liu

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180486

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      One-dimensional manganese oxide nanobelt bundles with birnessite-type structure have been synthesized by a hydrothermal process in a NaOH solution employing K-type layered manganese oxide as a precursor. The obtained manganese oxide nanobelt bundles exhibit excellent discharge properties and cycle stability. The initial capacity is 376 mAh·g−1 and the reversible capacity of 243 mAh·g−1 is maintained after the 50th cycle at a current density of 20 mA·g−1.

    13. Synthesis, Antibacterial Activities and Nuclease Properties of Ternary Copper(II) Complex Containing 2-(2′-Pyridyl)benzothiazole and Glycinate (pages 303–310)

      Yanmei Lu, Yongheng Chen, Zhibin Ou, Shi Chen, Chuxiong Zhuang and Xueyi Le

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100169

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      Ternary copper(II) complex [Cu(PBT)(Gly)(H2O)]ClO4 (PBT=2-(2′-pyridyl)benzothiazole, and Gly=glycinate) has been synthesized and characterized. The complex exhibits good antibacterial activities against two Gram(−) (Escherichia coil, Salmonella) and two Gram(+) (Bacillus subtilis, Staphylococcus aureus) microorganisms, and good binding ability and cleaving activity to DNA.

    14. Friedel-Crafts Alkylation of Indoles with Nitroalkenes Catalyzed by Zn(II)-Thiourea Complex (pages 311–315)

      Ningning Wan, Yonghai Hui, Zhengfeng Xie and Jide Wang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180480

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      Friedel-Crafts alkylation of indoles with nitroalkenes catalyzed by a novel Zn(II)-thiourea complex has been developed. The remarkable advantages of this reaction are mild reaction conditions, simple workup procedure, high yield of products and the use of ethanol as acceptable solvent.

    15. Synthesis and Photooxygenation of Furo[3,2-c]coumarin Derivatives as Antibacterial and DNA Intercalating Agent (pages 316–320)

      Abdullah G. Al-Sehemi and Sameh R. El-Gogary

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180483

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      Syntheses of 2,3-dimethyl-4H-furo[3,2-c]coumarin and 3-phenyl-4H-furo[3,2-c]coumarin as angular furocoumarins were carried out through Williamson reaction of 4-hydroxycoumarin with α-haloketones followed by cyclization. Photooxygenation of the synthesized furocoumarin derivatives was performed and the photoproducts were isolated and characterized. The affinity of 2,3-dimethyl-4H-furo[3,2-c]coumarin towards DNA and the antibacterial activity were evaluated and compared with 8-methoxypsoralen (8-MOP).

    16. An Efficient Four-component Synthesis of Spiro[indoline-pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidine]triones (pages 321–326)

      Ramin Ghahremanzadeh, Mojtaba Mirhosseini Moghaddam, Ayoob Bazgir and Mohammad Mehdic Akhondi

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180471

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    17. Generation of Methyl Vinyl Ketone from Oxidation of Levulinic Acid Oxidized by Cupric Oxide Complex (pages 327–332)

      Yan Gong, Lu Lin and Beixiao Zhang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180472

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      Methyl vinyl ketone (MVK) is a kind of high-value chemical which has been widely used in many fields. In this paper, it is formed from oxidation of levulinic acid–a hydrolysis product of biomass. Copper oxide supported on cerium dioxide (CuO/CeO2) and alumina (CuO/Al2O3) were prepared and used for the oxidation of levulinic acid (LA). The oxidants were characterized by means of XRD, H2-TPR and AFM techniques. CuO/CeO2 and CuO/Al2O3 show a different behavior with respect to pure CuO. The experiments revealed that CuO/CeO2 and CuO/Al2O3 can oxidize LA and get methyl vinyl ketone (yield of 15.5% detected by HS-MS) under mild reactive conditions, while pure CuO oxidizes LA to produce butanone (MEK).

    18. Synthesis and Bioactivity of Substituted Benzoylguanidine Derivatives as Potent Na+/H+ Exchanger Inhibitors (pages 333–340)

      Ning Jin, Yun Yang, Wenting Xu, Xiaozhi Yang, Guoqing Gong and Yungen Xu

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180470

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      A novel series of 5-(2-(4-(2,3,4-trimethoxybenzyl)piperazin-1-yl)acetyl)benzoylguanidine derivatives 6a6i have been synthesized and screened for their NHE1 inhibitory activity.

    19. Potassium tert-Butoxide Catalyzed Synthesis and Characterization of Novel 3-Aryl-3-(phenylthio)-1-(thiophen-3-yl)propan-1-one Derivatives (pages 341–344)

      Yakup Budak

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180484

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      A series of thiophenyl-containing 3-thiophene derivatives (4a4i) were prepared via the reaction of chalcone-analogua compounds (3a3i) and thiophenol in the presence of catalytic amount of KOBu-t in CH2Cl2 with moderate to high yields. The mechanistic pathway of the reaction was explained by the Michael-type addition of thiophenol to chalcone derivatives (3a3i).

    20. Efficient Synthesis of β-Acetamido Ketones and Esters Using Aluminum Chloride as an Inexpensive and Green Catalyst (pages 345–352)

      Zolfigol Mohammad Ali, Khazaei Ardeshir, Mokhlesi Mohammad, Zare Abdolkarim, Safaiee Maliheh, Derakhshan-Panah Fatemeh, Keypour Hassan, Ali Dehghani-Firouzabadi Ahmad and Merajoddin Maria

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201180460

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      Aluminum chloride (AlCl3) efficiently catalyzes one-pot multicomponent condensation of enolizable ketones or alkyl acetoacetates with aldehydes, acetonitrile and acetyl chloride to afford β-acetamido ketone or ester derivatives in high to excellent yields and in relatively short reaction times. Moreover, by this synthetic method, some novel β-acetamido ketones and esters (i.e. one complex structure) are prepared.

    21. Synthesis, Insecticidal Assay and Molecular Docking Study of Novel Neonicotinoids N-Oxide Analogues (pages 357–361)

      Wenwen Zhang, Yefeng Fan, Tao Yu, Zhiping Xu, Xiaoyong Xu, Jiagao Cheng and Zhong Li

      Article first published online: 23 DEC 2011 | DOI: 10.1002/cjoc.201100177

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      Neonicotinoids N-oxide analogues were designed and synthesized. The Novel compounds exhibited high insecticidal activity against cowpea aphids and the influence of N-oxide formation on the biological activity was elucidated by computational chemical study.

      Corrected by:

      Erratum: Erratum: Synthesis, Insecticidal Assay and Molecular Docking Study of Novel Neonicotinoids N-Oxide Analogues

      Vol. 30, Issue 10, 2598, Article first published online: 23 OCT 2012

    22. An Efficient and Green One-pot Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one Derivatives Promoted by Sulfamic Acid in [BMIM]BF4 Ionic Liquid (pages 362–366)

      Hongjun Zang, Yong Zhang, Bowen Cheng, Weiwei Zhang, Xianlin Xu and Yuanlin Ren

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180488

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      An efficient and green procedure for the synthesis of novel 12-aryl-8,9,10,12-tetrahydrobenzo[a]xanthen-11-one derivatives has been described through one-pot condensation of 2-naphthol, arylaldehyde and 5,5-dimethylcyclohexane-1,3-dione in the presence of sulfamic acid (NH2SO3H) in ionic liquid 1-n-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]BF4). These reactions proceed with good yields under short reaction time. Furthermore, the green catalytic system can be recycled specific times with no decreases in yields and reaction rates.

    23. An Efficient and Odorless Synthesis of Thioethers Using 2-[Bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides as Thiol Equivalents (pages 367–371)

      Haifeng Yu

      Article first published online: 23 DEC 2011 | DOI: 10.1002/cjoc.201100096

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      Using 2-[bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides as odorless thiol equivalents, an efficient and odorless synthesis of thioethers has been developed. Promoted by NaOH in EtOH, the cleavage of 2-[bis(alkylthio)methylene]-3-oxo-N-o-tolylbutanamides commences to generate thiolate anions, and the generated thiolate anions then react with halides to give various thioethers in good yield.

    24. One-pot Green Synthesis of Pyrrole Derivatives Catalyzed by Nano Sulfated Zirconia as a Solid Acid Catalyst (pages 372–376)

      Abbas Teimouri and Alireza Najafi Chermahini

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100143

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      A new and efficient method for the preparation of N-substituted pyrroles from one-pot Paal-Knorr condensation has been accomplished using nano-crystalline sulfated zirconia (SZ) as the catalyst in ethanol at moderate temperature. This new protocol has the advantages of easy availability, stability, reusability and eco-friendliness of the catalyst, high to excellent yields, simple experimental and work-up procedure.

    25. Electrochemical Sensor for Sensitive Determination of Ga(III) Ion Based on β-Cyclodextrin Incorporated Multi-walled Carbon Nanotubes and Imprinted Sol-gel Composite Film (pages 377–385)

      Yufang Hu, Zhaohui Zhang, Huabin Zhang, Lijuan Luo, Minglei Zhang, Xiao Yang and Shouzhuo Yao

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180474

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      An electrochemical ion-imprinted sensor for sensitive and selective detection of Ga(III) was reported in this work. The protocol involved stepwise modification of β-CD-MWCNTs nanocomposite and a thin ion-imprinted sol-gel film on ethanediamine-electrodeposited Au electrode.

    26. Synthesis and in vitro Antibacterial Activities of 5-(2,3,4,5-Tetrahydro-1H-chromeno[2,3-d]pyrimidin-5-yl)pyrimidione Derivatives (pages 386–390)

      Qingfang Cheng, Qifa Wang, Ting Tan, Mingxiao Wang and Na Chen

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100112

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      A series of novel 5-(2,3,4,5-tetrahydro-1H-chromeno[2,3-d]pyrimidin-5-yl)pyrimidione derivatives have been synthesized from substituted salicylaldehydes and barbituric acid or 2-thiobarbituric acid in water catalyzed by phase transfer catalysis of triethylbenzyl ammonium chloride (TEBA). Elemental analysis, IR, 1H NMR, and 13C NMR elucidated the structures of all the newly synthesized compounds. In vitro antimicrobial activities of synthesized compounds have been investigated against Escherichia coli, Bacillus subtilis, Staphylococcus aureus, and Pseudomonas aeruginosa.

    27. A Rapid and Simple Method for Quantitative Aziridination from Aminobrominated Derivatives of Olefins under Solvent-free and Mild Conditions (pages 391–399)

      Junfa Wei, Zhanguo Chen, Yanni Gao, Peng Zhang, Chuanning Wang, Pengfei Zhao, Yun Wang and Xianying Shi

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100176

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      The reaction proceeded completely and cleanly to give aziridines in quantitative yields by simply grinding the solid mixture of the substrate, K2CO3 and catalytic amount of urea at room temperature in air, and provides a "real" green protocol for the preparation aziridines from a large scope of aminohalogenated derivatives of simple and electron-deficient conjugated olefins.

    28. Influence of Temperatures on the Tautomerism of the N-(1H-imidazoline-2-yl)-1H-benzimidazol-2-amine and Investigation of Its Electrochemical Behaviour (pages 400–404)

      Süleyman Servi, Murat Genc and Sinan Saydam

      Article first published online: 23 DEC 2011 | DOI: 10.1002/cjoc.201100103

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      Synthesis of N-(1H-imidazoline-2-yl)-1H-benzimidazol-2-amine was carried out under microwave irradiation (MWI) conditions. Dynamic 1H NMR investigation of N-(1H-imidazoline-2-yl)-1H-benzimidazol-2-amine compound was reported at temperature range of 223–333 K in DMF-d7. Some physical parameters, such as coalescence temperature (Tc), the free energy of activation (ΔG) and rate constant (k) values were calculated from its 1H NMR spectra at various temperatures. Electrochemical feature of this compound was investigated by cyclic (CV) and square wave voltammetry (SWV).

    29. Synthesis of β,β′-Porphyrin Dimer Linked by Vinylene (pages 405–408)

      Xuliang Jiang, Panli Li, Yucheng Wang, Qi Shen, Jingchao Tao and Weimin Shi

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180490

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      Synthesis of a novel β,β′-tetraalkylporphyrin dimer linked by vinylene was discribed, in which the dimer was readily prepared from a porphyrin-derived Wittig reagent and a mono-formylated porphyrin via Wittig reaction. No π-conjugation between the two porphyrin rings was obserbed, and the dimer was in trans form.

    30. Synthesis and Characterization of a Novel Soluble Diethoxy Phosphoryl Chitosan (pages 413–417)

      Li Ma, Kerang Li, Limin Li and Pu Liu

      Article first published online: 23 DEC 2011 | DOI: 10.1002/cjoc.201100167

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      A soluble high molecule weight diethoxy phosphoryl chitosan was successfully prepared by one step reaction that chitosan reacted with diethyl phosphite. And this simple synthetic method provided a new and available approach to prepare a soluble high molecule weight chitosan derivative.

    31. Regulation of Glucose Oxidase Activity through Interaction with Fullerene Derivatives (pages 418–426)

      Yunyan Gao, Zhongli Wang, Zhize Ou, Yi Li, Xuesong Wang and Guoqiang Yang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180479

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      The fullerene derivatives can form stable complex with glucose oxidase (GOx) and the catalytic velocity of fullerene/GOx complex is significantly affected by the substituent linked to fullerene cage.

    32. Cesium's Affects on Morphological Changes of Human Erythrocytes (pages 427–432)

      Yunxiao Feng and Ming La

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180477

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      Atomic force microscopy (AFM) was used to study morphological changes of human erythrocytes after incubating with different concentrations of CsCl in order to observe the toxity of the cesium in several pathological processes. The AFM images showed the "domain structures" that appeared after incubation with higher concentration of CsCl.

    33. A Simple Polyoxometallate for Selective Oxidation of Benzyl Alcohol to Benzaldehyde with Hydrogen Peroxide (pages 433–437)

      Wei Tian, Yang Hou, Xiaoguang Wang, Bin Lu, Jingxiang Zhao and Qinghai Cai

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201100144

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      A simple Keggin-type polyoxometallates were prepared and used as catalysts for selective oxidation of benzyl alcohol into benzaldehyde with H2O2 as an oxidant under solvent-free condition. Ni3(PW12O40)2·26H2O afforded high catalytic activity with TON of 550.6 mol/(mol cat.) and 87.3% selectivity.

    34. Spectroscopic Studies on the Binding of Kaempferol-3,7-α-L-rhamnopyranoside to Bovine Serum Albumin (pages 438–444)

      Di Yao, Jing Yu, Yingming Pan, Fuping Huang, Hedong Bian, Qing Yu and Hong Liang

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180475

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      The binding of kaempferol-3,7-α-L-rhamnopyranoside (KRR) with bovine serum albumin (BSA) was investigated by different spectroscopic methods under simulative physiological conditions. Analysis of ?uorescence quenching data of BSA by KRR at different temperatures using Stern-Volmer methods revealed the formation of a ground state KRR-BSA complex with moderate binding constant of the order 104 L·mol−1.

    35. Green Synthesis of Calcium Carbonate Uniform Microspheres Using Vegetables (pages 445–448)

      Long Chen, Zuben Bao, Jian Pan, Weibing Xu, Heping Zhang, Hongbo Hu, Jichao Hu and Lili Zhou

      Article first published online: 19 JAN 2012 | DOI: 10.1002/cjoc.201100235

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      Uniform vaterite and calcite mixed microspheres are synthesized by using extract of carrot.

    36. Spectral Characterization and Antimicrobial Activity of Some Schiff Bases Derived from 4-Chloro-2-aminophenol and Various Salicylaldehyde Derivatives (pages 449–459)

      Adem Cinarli, Demet Gürbüz, Aydin Tavman and A. Seher Birteksöz

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180473

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      A series of N-(5-chloro-2-hydroxyphenyl)-(3/4/5-substituted)-salicylaldimines (IXI) were synthesized using appropriate synthetic route. Relationship between the melting points and the structures of the compounds was examined. Antifungal activities were reported for Candida albicans. Schiff bases showed considerable antimicrobial activity against S. aureus, S. epidermidis and C. albicans. N-(5-Chloro-2-hydroxyphenyl)-3-hydroxy-salicylaldimine (II) has the broadest and highest antimicrobial activity.

  7. Note

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Further Masthead Information
    6. Communication
    7. Full Papers
    8. Note
    1. Asymmetric Synthesis of All Four Isomers of an Unusual Heterocycle-Containing Amino Acid: 2-Amino-3-furan-2-yl-pentanoic Acid (pages 460–465)

      Lei Nie, Rui Yang, Conghai Zhang, Haichuan Yin, Shengjiao Yan and Jun Lin

      Article first published online: 15 FEB 2012 | DOI: 10.1002/cjoc.201180489

      Thumbnail image of graphical abstract

      All four isomers of a novel β-branched unusual amino acid were designed and synthesized with high stereoselectivity (>90% de) and in 33% –44% overall yields by the use of 4(R/S)-5,5-dimethyl-4-phenyl-oxazolidin-2-one as the chiral auxiliary via asymmetric 1,4-Michael addition, direct or indirect azidation, hydrolysis and hydrogenation reactions.

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