Chinese Journal of Chemistry

Cover image for Chinese Journal of Chemistry

October, 2010

Volume 28, Issue 10

Pages 1795–2091

  1. Communication

    1. Top of page
    2. Communication
    3. Full Papers
    4. Notes
    1. Binding His-tagged Proteins to NTA Stripes Assembled in 2D DNA Scaffold (pages 1795–1798)

      Wenyi Huang, Jie Chao, Qin Yan and Dr. Shoujun Xiao

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090301

      Thumbnail image of graphical abstract

      Histidine-tagged proteins were bound onto nitrilotriacetic acid (NTA) stripes on a 2-D DNA scaffold which involved a ssDNA-NTA conjugate prepared by click chemistry.

  2. Full Papers

    1. Top of page
    2. Communication
    3. Full Papers
    4. Notes
    1. A New Chiral Quinoxaline Derivative with Ferroelectric Property (pages 1799–1802)

      Lizhuang Chen, Guangfan Han, Hengyun Ye and Prof. Dr. Rengen Xiong

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090302

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      Reaction of 1,2-di(thiophen-2-yl)- ethane-1,2-dione and (1R,2R)-(−)-diaminocyclohexane afforded a homochiral quinoxaline derivative (4aR,8aR)-2,3-di(thiophen-2-yl)-decahydroquinoxaline (1). Crystallographic analysis showed it belongs to chiral space group P21 with ferroelectric behavior. A typical ferroelectric feature of electric hysteresis loop was obtained, with remanent polarization (Pr) of ca. 0.014 µC·cm−2 and coercive field (Ec) of 1.2 kV·cm−1.

    2. Ab initio Study of Mechanism of Forming Germanic Hetero-Polycyclic Compound between Germylene Carbene (H2Ge[DOUBLE BOND]C:) and Formaldehyde (pages 1803–1809)

      Prof. Xiuhui Lu, Xin Che, Leyi Shi and Junfeng Han

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090303

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      The mechanism of the cycloaddition reaction of forming germanic hetero- polycyclic compound between singlet germylene carbene and formaldehyde has been investigated with MP2/6-31G* method, including geometry optimization and vibrational analysis for the involved stationary points on the potential energy surface. The energies of the different conformations are calculated by CCSD (T)//MP2/6-31G* method.

    3. Synthesis and Characterization of Polymer Anchored Cu(II) Complexes: Heterogeneous Catalysts for Preparation of Diaryl Ethers (pages 1810–1820)

      Dr. Manirul Islam, Sanchita Mondal, Mobarak Manir, Anupam Singha Roy, Paromita Mondal and Dildar Hossain

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090304

    4. Molecular Packing in Self-Assembled p-n and n-p-n Heterostructure Co-oligomers (pages 1821–1828)

      Junhua Wan, Yibao Li, Zhun Ma, Tingcheng Li and Prof. Dr. Wei Huang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090305

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      As molecular models, two p-n and n-p-n heterostructure oligomers are investigated for their assembly behaviors and corresponding packing structures in solid bulk states (three-dimensional) and on surfaces (two-dimensional). The molecular backbone symmetry has visible influence on the molecular packing structures.

    5. 5,11,17,23-Tetrakis[(p-carboxyphenyl)azo]-25,26,27,28-tetrahydroxy Calix[4]arene: Crystal Structure and pH Sensing Properties (pages 1829–1834)

      Leilei Liu, Zhigang Ren, Hongxi Li, Hai Shang and Prof. Dr. Jianping Lang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090306

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      The crystal structure of 5,11,17,23-tetrakis [(p-carboxyphenyl)azo]-25,26,27,28-tetra-hydroxycalix[4]arene·4DMF (2·4DMF) was determined by single crystal X-ray crystallography. The intra- and intermolecular hydrogen-bonding interactions and the π ···π interactions in 2·4DMF afford a 2D H-bonded wave-like network. Compound 2 showed reversible color changes in a wide pH range from 1 to 13.5.

    6. DFT Study for a Series of Less-Symmetrical Crown Ethers and Their Complexes with Alkali Metal Cations (pages 1835–1843)

      Yuan Miao, Prof. Dr. Xueye Wang, Xin Jin, Ling Yi and Cuihuan Ren

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090307

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      A series of ring-contracted (14-crown-5,17-crown-6) and ring-enlarged (16-crown-5, 17-crown-5, 19-crown-6, 20-crown-6) crown ethers and their complexes with alkali-metal cations Na+ and K+ had been explored using density functional theory (DFT) at B3LYP/6-31G* level.

    7. Influence of Montmorillonite's Concentration on the Thixotropy of Hydrotalcite-like Compounds/Montmorillonite Suspensions (pages 1844–1848)

      Chunxiao Jia, Dr. Shuping Li and Hui Zong

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090308

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      It can be concluded that for each HTlc/MT suspension, G' increased with the increase of recovery time, indicating the recovery of the network structure. Furthermore, for all the HTlc/MT suspensions, with increasing the MT's concentration, G' and G'' increased gradually, which illustrated the structure strength of the HTlc/MT suspensions increased with the MT's concentration.

    8. Convolutive Cyclic Voltammetry, Chronoamperometry and Chronopotentiometry Studies of C6Me6-isocloso-ruthenaborane Complex in Non-aqueous Medium at a Glassy Carbon Electrode (pages 1849–1856)

      M. Mohamed Ghoneim and Dr. S. Ibrahim El-Hallag

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090309

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      Electroreduction of the C6Me6-isocloso-ruthenaborane complex {(C6Me6)-isocloso-1-RuB10H10} has been investigated using cyclic voltammetry, convolutive voltammetry, chronoamperometry and chronopotentiometry techniques at a glassy carbon electrode in 0.1 mol·L−1 tetrabutyl ammonium perchlorate dissolved in methylene chloride.

    9. Density Functional Theory Study of Hydrogen Bonding Dimers with 4-Pyridinecarboxylic Acid Hydrazine (pages 1857–1863)

      Qiongfen Yang, Bingyun Xie, Prof. Dr. Quan Li and Keqing Zhao

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090310

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      The most stable dimer D1 of 4-pyridinecarboxylic acid hydrazine had the two same linear N[BOND]H···O hydrogen bonds, and the interaction energy is 51.038 kJ·mol−1 which was corrected by the basis set superposition error and zero-point. The hydrogen bonds formation made stretching vibration frequencies of N[BOND]H bond red-shifted. The natural bond orbital analysis showed that each N[BOND]H···O hydrogen bond in D1 had the biggest interaction stabilization energy of 69.078 kJ·mol−1. Thermodynamic analysis indicated that the formation process of D1 was exothermic and spontaneous at low and room temperature.

    10. Reforming of CH4 with CO2 over Rh/H-Beta: Effect of Rhodium Dispersion on the Catalytic Activity and Coke Resistance (pages 1864–1870)

      Linping Qian, Prof. Dr. Bin Yue, Supeng Pei, Li Zhang, Lin Ye, Jifang Cheng, Shik Chi Tsang and Prof. Dr. Heyong He

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090311

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      Rh/H-Beta with low rhodium loading of 0.5 wt% and 1.0 wt% shows high catalytic activity and coke resistance in CH4 reforming with CO2, ascribing to highly dispersed rhodium species.

    11. Characterization and Analysis of the Electrochemical Properties of the Polyaniline Synthesized by Emulsion Polymerization in Constant Magnetic Field (0.4 T) (pages 1871–1875)

      Prof. Dr. Li Ma, Laizheng Luo, Haotian Ma, Xiaofeng Li, Wenyi Su and Shaona Hao

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090312

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      A method was established firstly, which took carbon paper loaded polyaniline (PANI) as the working electrode to real-time characterize and analyze the electrochemical properties of the PANI synthesized by emulsion polymerization in constant magnetic field (MF, 0.4 T). There are four pairs of characteristic redox peaks of the PANI in the cyclic voltammetry. It should be noted that the peak currents of the PANI synthesized in the presence of the MF are bigger than that of the PANI synthesized in the absence of the MF.

    12. A Theoretical Study on Chapman Rearrangement (pages 1876–1884)

      Dr. Siamak Noorizadeh and Ameneh Ozhand

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090313

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      Maximum hardness, minimum polarizability and minimum electrophilicity principles are applied for prediction of some Chapman rearrangements.

    13. Bulk and Interfacial Properties for CO2-SO2 Binary Mixtures (pages 1885–1889)

      Dong Fu, Jiazi Feng and Jianyi Lu

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090314

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      The perturbed-chain statistical associating fluid theory (PC-SAFT) and density-gradient theory (DGT) were used to construct an equation of state (EOS) for the phase equilibria and surface tensions of carbon dioxide (CO2)-sulfur dioxide (SO2) binary mixtures. The influences of temperature, pressure and bulk properties on the surface tension were discussed. The present figure shows the dependence of surface tensions on the pressure and the molar fraction of SO2 for CO2-SO2 mixtures at 263, 303, 333 and 393 K. At given temperature, the surface tensions decrease with the increase of both the pressure and the molar fraction of SO2 in liquid phase. At given molar fraction of SO2, the surface tensions decrease with the increase of temperature.

    14. Direct Electrochemistry and Electrocatalysis Behaviors of Glucose Oxidase Based on Hyaluronic Acid-Carbon Nanotubes-Ionic Liquid Composite Film (pages 1890–1896)

      Xiaodong Shangguan, Prof. Dr. Jianbin Zheng, Hongfang Zhang and Hongsheng Tang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090315

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      As could be seen from the figure, the electrode exhibited a pair of redox peaks in the pH value from 3.92 to 7.90. Both anodic and cathodic peak potentials of GOx shifted to negative direction and the E0′ versus pH gave a straight line (inset), and the linear regression equation of the straight line was E0= −0.122−0.051pH, r=0.9958 (n=4). The slope was close to the theoretical value (−58.6 mV/pH, 25°C) for a two-proton coupled with two-electron redox reaction process.

    15. A Density Functional Investigation of Fluorinated B12N12 Clusters (pages 1897–1901)

      Hong Wang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090316

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      Density functional calculations have been carried out on a series of fluorinated B12N12 molecules. The fluorine atoms are more prone to absorb on the boron atoms than the nitrogen atoms in B12N12. The 1,3 addition is an energetically favorable adsorption site in one-fluorine-molecule adsorption.

    16. Synthesis, Crystal Structure, Theoretical Calculation, Specific Heat Capacity, and Thermodynamic Properties of 4,4′-Bis(3-N-methoxyformyl thioureido)-diphenyloxide (pages 1902–1906)

      Xinyu Zhang, Jie Huang, Jirong Song, Kangzheng Xu and Qixun Ban

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090317

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      A new bioactive compound 4,4′-bis- (3-N-methoxyformyl thioureido)-diphenyl-oxide was obtained by slow evaporation method at room temperature. The crystal structure was determined with a X-ray diffractometer. It can be seen that there are π-π stacking interactions between the aromatic rings with the top and bottom being folded mutually. The H-bond and π-π stacking interactions in the title compound lead to a three-dimensional structure of the space, as shown in the figure. Multiple hydrogen bonds can reduce the energy which is good for accumulating of compounds in the unit. Intermolecular hydrogen bonds between the moleculs make the structure form multi-dimensional network.

    17. Theoretical Studies on the Electronic Structures and Optical Properties of Tri-aryl End-capped Terthiophene Derivatives (pages 1907–1914)

      Ni Wei, Prof. Dr. Wenliang Wang, Shiwei Yin, Song Du and Weina Wang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090318

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      A combined DFT/TDDFT approach has been employed for calculating the electronic structures and optical properties of tri-aryl end-capped terthiophene (denoted by 3T) derivatives.

    18. Binding Studies of a Schiff Base Compound Containing a 1,2,4-Triazole Ring with Bovine Serum Albumin Using Spectroscopic Methods (pages 1915–1922)

      Ping Mei, Yang Liu, Yezhong Zhang, Jiaxin Fu, Xiaohong Sun and Prof. Dr. Yi Liu

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090319

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      The binding interaction of a Schiff base compound containing a 1,2,4-triazole ring (CTT) with bovine serum albumin (BSA) was studied by spectroscopy methods. It was proved to be a static quenching process, hydrophobic forces and hydrogen bond played major roles in stabilizing the complex, and the binding site was mainly located at sub-domain IIIA (site II).

    19. Influence of the Synthesis pH on Sorption Behavior of Mesoporous MCM-41 for Toxic Metal Ions (pages 1923–1926)

      Dr. Hamid Sepehrian and Syed Waqif-Husain

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090320

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      Two samples of mesoporous MCM-41 were prepared with different synthesis pH. The results show that distribution coefficient of Ba(II), Fe(III), Th(IV) on the synthesized MCM-41 in basic condition and Cu(II), Pb(II), Zr(IV) on the synthesized MCM-41 in acidic condition has been enhanced.

    20. The Modifiable Character of a Novel Ru-Fe-B/ZrO2 Catalyst for Benzene Selective Hydrogenation to Cyclohexene (pages 1927–1934)

      Zhongyi Liu, Haijie Sun, Dongbin Wang, Shouchang Liu and Prof. Dr. Zhongjun Li

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090321

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      A novel Ru-Fe-B/ZrO2 catalyst for the selective hydrogenation of benzene to cyclohexene is prepared and characterized. The modifiable character of the Ru-Fe-B/ZrO2 catalysts is investigated. The activity and cyclohexene selectivity of the catalysts can be reversibly modified by using H2SO4 or ZnO and the modifiable mechanisms involved are speculated.

    21. An Effective Method for Bulk Obtaining Graphene Oxide Solids (pages 1935–1940)

      Jingchao Wang, Prof. Dr. Xianbao Wang, Li Wan, Yingkui Yang and Shimin Wang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090322

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      A new convenient method for bulk obtaining graphene oxide (GO) solids was developed. Tyndall effect proved that GO solution has a colloidal nature. Sodium hydroxide as the electrolyte added into GO solution can be able to produce flocculation, which made the filtration become easy. The thickness of GO which was made by this method was about 0.8 nm, and the surfaces were very smooth, almost free of impurities. This method could greatly simplify the process of GO preparation.

    22. Formation of Left-handed Double Twisted Silica Nanoribbons (pages 1941–1945)

      Yuxia Chen, Sibing Wang, Xiaojuan Liu, Yi Li, Dr. Baozong Li and Yonggang Yang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090323

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      Left-handed double twisted silica nanoribbons were prepared through a sol-gel transcription approach in the mixtures of ethanol and water. The self-assemblies of a chiral low-molecular-weight amphiphile served as the templates. The samples were characterized using X-ray diffraction, transmission electron microscope and scanning electron microscope.

    23. Synthesis of Hollow-flower-ball-like Cd4(OH)5Cl3 Using Microwave Irradiation Method (pages 1946–1950)

      Dr. Yin Peng, Shuhua Liu and Zihui Yang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090324

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      Novel mesoporous structured Cd4Cl3(OH)5 hollow flower-ball were controllably synthesized through a simple microwave heating process. Under UV-irradiation condition, the degradation of salicylic acid and 4-chlorophenol in solutions reached 100% and 93% respectively within 1 h in the presence of Cd4(OH)5Cl3.

    24. Hydrogen Bonded Supramolecular Liquid Crystalline Complex of 2,4,6-Triarylamino-1,3,5-triazines with Semiperfluorinated Benzoic Acids (pages 1957–1962)

      Dr. Xiaohong Cheng, Jie Jin, Quan Li and Xing Dong

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090326

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      Hydrogen bonded supramolecular complexes of 2,4,6-triarylamino-1,3,5-triazines (Tn) with semiperfluorinated benzoic acids have been prepared. The mesophase behaviors of such complexes were investigated with POM, DSC and X-ray diffraction. Columnar mesophase was found in the equimolar mixtures of the triazines with the semiperfluorinated benzoic acids.

    25. Solvent Dependent Preparation of CuI Nanocrystals and the Catalysis in Sonogashira Coupling Reaction (pages 1963–1966)

      Manbo Zhang, Lanling Wang, Boxiao Tang, Xingcan Shen and Ruixiang Hu

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090327

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      Octahedral and rod-like CuI nanocrystal were fabricated in water and ethanol respectively. The obtained CuI demonstrated higher activity for the Sonogashira cross-coupling of 4-iodoanisole and phenylacetylene.

    26. A New Sensor for Simultaneous Determination of Tyrosine and Dopamine Using Iron(III) Doped Zeolite Modified Carbon Paste Electrode (pages 1967–1972)

      Dr. Ali Babaei, Mojgan Zendehdel, Balal Khalilzadeh and Mohammad Abnosi

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090328

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      A new chemically modified electrode is constructed based on iron(III) doped zeolite modified carbon paste electrode (Fe3+Y/ZMCPE). The biological important compounds, dopamine (DA) and tyrosine (Tyr), could be more accumulated on the electrode surface due to their interaction with iron(III). The new sensor could be used for the simultaneous determination of DA and Tyr.

    27. A Competitor-switched Electrochemical Sensor for Detection of DNA (pages 1978–1982)

      Hao Fan, Rong Xing, Ying Xu, Miao Chen, Prof. Dr. Qingjiang Wang, Prof. Dr. Pingang He and Yuzhi Fang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090330

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      A competitor-switched electrochemical sensor based on a generic displacement strategy was designed for DNA detection. In this strategy, an unmodified single-stranded DNA (cDNA) completely complementary to the target DNA served as the molecular recognition element, while a hairpin DNA (hDNA) labeled with a ferrocene (Fc) and a thiol group at its terminals served as both the competitor element and the probe. This electrochemical sensor was fabricated by self-assembling a dsDNA onto a gold electrode surface. The dsDNA was pre-formed through the hybridization of Fc-labeled hDNA and cDNA with their part complementary sequences.

    28. Electrocarboxylation of Carbon Dioxide with Polycyclic Aromatic Hydrocarbons Using Ni as the Cathode (pages 1983–1988)

      Dr. Gaoqing Yuan, Liuguan Li, Huanfeng Jiang, Chaorong Qi and Fengchun Xie

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090331

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      With Ni cathode and Al sacrificial anode, the electrocarboxylation of polycyclic aromatic hydrocarbons (naphthalene, 5-methylnaph- thalene, anthracene, phenanthrene and 1H-indene) with carbon dioxide (4 MPa) could be successfully performed in an undivided cell containing n-Bu4NBr-DMF supporting electrolyte with a constant current at room temperature, affording the corresponding trans-dicarboxylic acids in good to excellent yields (62% –90%).

    29. Synthesis and Antimicrobial Activity of Quinazolin-4(3H)-ones Incorporating Sulfonamido-4-thiazolidinone (pages 1989–1997)

      Dr. Navin B. Patel, Jaymin C. Patel and Virendra N. Patel

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090332

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      New 7-chloro-2-[2-(2,6-dichlorophenyl)amino]benzyl-3-[4-(2-substituted phenyl-4-oxo- thiazolidin-3-yl)phenyl]-sulfonamido-quinazolin-4(3H)-ones 5a5l were synthesized from 2-[2-(2,6-dichlorophenyl)amino]phenyl acetic acid. All the compounds were screened for in vitro antibacterial and antifungal activities by broth micro dilution method. Some of them showed good antimicrobial activity.

    30. High-performance Liquid Chromatographic Analysis of Pioglitazone, Gliquidone, Rosuvastatin and Simvastatin in Formulations and Human Serum (pages 1998–2002)

      Dr. M. Saeed Arayne, Najma Sultana, Agha Zeeshan Mirza and Hina Shamshad

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090333

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      Co-administration of HMG-CoA reductase with antidiabetic drugs is most common since antidiabetic drugs are mostly prescribed for long term therapy. In the present paper, we describe the simultaneous determination of antidiabetic (pioglitazone hydrochloride and gliquidone) in presence of statins (rosvastatin and simvastatin) in formulations and in human serum using RP-HPLC technique. The serum samples were subjected to protein precipitation with acetonitrile prior to an HPLC analysis. At a flow rate of 1 mL·min−1 isocratic elution was employed, using mobile phase consisting of methanol/water (90:10, V:V), pH 3.50 with phosphoric acid and absorbance was recorded at 235 nm.

    31. Pyrrolidine-based Dicationic Acidic Ionic Liquids: Efficient and Recyclable Catalysts for Esterifications (pages 2003–2008)

      Xiaofei Liu, Yingwei Zhao, Zhen Li, Prof. Dr. Jing Chen and Prof. Dr. Chungu Xia

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090334

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      A highly efficient and eco-friendly esterification was achieved by a series of novel dicationic acidic ionic liquids (DAILs) containing double –SO3H cations. High yields of the product esters were obtained by using 2 mol% of the DAILs as catalysts and DAIL I could be reused at least ten times without appreciable loss of its efficicency.

    32. Quantitative Analysis of Chromium(VI) in Dilute Solution by Using Adsorption and Diffuse Reflectance Near-infrared Spectroscopy (pages 2009–2014)

      Prof. Dr. Xueguang Shao, Nan Chen and Wensheng Cai

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090335

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      A method for quantitative determination of metal element in aqueous solution was developed by using adsorption and diffuse reflectance near-infrared spectroscopy (DRNIRS). This figure shows the relationship of Cr(VI) contents predicted by DRNIRS and reference values.

    33. Synthesis of Hollow Gold Nanospheres and Their Applications in Surface-enhanced Raman Scattering and DNA Biosensor (pages 2015–2019)

      Qi Meng, Hui Li, Haifeng Yang and Prof. Dr. Hexing Li

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090336

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      Hollow gold nanospheres (HGNs) with nanopinholes were prepared by chemical reduction of HAuCl4 with aqueous KBH4 in the presence of the Bu4PBr template. The HGNs could be served as substrates for surface-enhanced Raman scattering (SERS), which exhibited much higher surface enhancement than the solid gold nanoparticles in case of Rhodamine 6G as a molecule probe.

    34. Synthesis and Herbicidal Activity of α-Hydroxy Phosphonate Derivatives Containing Pyrimidine Moiety (pages 2020–2024)

      Hong Song, Huiyu Mao and Prof. Dr. Deqing Shi

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090337

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      A series of α-hydroxy phosphonate derivatives containing pyrimidine moiety were designed and synthesized. The results of herbicidal activities (in vitro and in vivo) showed that some of the title compounds possessed moderate to good herbicidal activity.

    35. Gallium(III) Iodide-catalyzed Biginelli-type Reaction Under Solvent-free Conditions: Efficient Synthesis of Dihydropyrimidine-2(1H)-one Derivatives (pages 2025–2032)

      Dapeng Li, Haifeng Mao, Litao An, Zhihao Zhao and Prof. Dr. Jianping Zou

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090338

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      The Biginelli-type condensation of ethyl acetoacetate/cycloketone, aldehyde and urea/thiourea under solvent-free condition catalyzed by 10% gallium(III) iodide to form dihydropyrimidine-2(1H)-one derivatives was described. This process offered one way to constructing dihydropyrimidine-2(1H)-ones in good to excellent yields with simple procedure and short reaction time.

    36. Study on Production of Amino Acids from Bean Dregs by Hydrolysis in Sub-critical Water (pages 2033–2038)

      Guangyong Zhu, Prof. Dr. Xian Zhu, Qi Fan, Xiaolei Liu, Yijing Shen and Junhui Jiang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090339

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      Amino acids play an important physiological role in all life-forms. This study investigated the production of value-added amino acids from bean dregs by hydrolysis in subcritical water. This method may provide a practical and economical solution for the disposal of bean dregs wastes.

    37. Solvent-free Synthesis of Alkylaminophenols via Petasis Boronic Mannich Reaction in One Pot without Catalysts (pages 2039–2044)

      Ying Liu, Prof. Dr. Limin Wang, Yuanyuan Sui and Jianjun Yu

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090340

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      By using solvent-free and heat conditions, the Petasis boronic Mannich reaction of salicylaldehydes with various boronic acids and secondary amines without catalyst is described. The alkylaminophenols were obtained in moderate to good yields in a shorter reaction time than the traditional methods.

    38. Efficient Synthesis of Polyhydroquinolines via the Hantzsch Reaction Using Iron Loaded Mesoporous Materials (pages 2045–2048)

      Dr. Majid M. Heravi, Mariam Hosseini, Hossein A. Oskooie, Bita Baghernejad and F. Farzaneh

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090341

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      A simple and convenient protocol is described for the preparation of polyhydroquinolines via one-pot, multi component reaction of an aromatic aldehyde, ethylacetoacetate, ammonium acetate and dimedone using iron loaded mesoporous materials as an efficient catalyst in good yields.

    39. One Pot Synthesis of Amphiphilic Hyperbranched Poly-(amino ester) and Its Dynamic Surface Activity (pages 2049–2054)

      Zhangshui Gong, Dr. Xufeng Ni, Zhenhua Liang and Prof. Dr. Zhiquan Shen

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090342

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      Amphiphilic hyperbranched and linear poly(amino ester)s were synthesized by Michael addition polymerization of commercial water soluble ethoxylated multi-acrylates and hydrophobic long chain alkyl amines. These poly(amino ester)s were loosely self-assembled in aqueous phase as single-molecule or multi-molecule micelles and showed special solubility and polymeric surfactant properties.

    40. Polymerization of n-Octylallene with Rare Earth Catalyst Composed of Ln(P204)3/Al(i-Bu)3 (pages 2055–2058)

      Xufeng Ni, Weiwei Zhu and Prof. Dr. Zhiquan Shen

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090343

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      Polymerization of n-octylallene was successfully carried out using a conventional binary rare earth catalytic system composed of rare earth tris(2- ethylhexylphosphonate) (Ln(P204)3) and tri-isobutyl aluminum (Al(i-Bu)3) for the first time. The effects of catalyst, solvent, reaction time and temperature on the polymerization of n-octylallene were studied. The resulting poly(n- octylallene) has weight-average molecular weight of 11000, molecular weight distribution of 1.4 and 96% yield under the moderate reaction conditions: [Al]/[Y] =50 (molar ratio), [n-octylallene]/[Y] =100 (molar ratio), polymerized at 80°C for 20 h in bulk. The poly(n-octylallene) obtained consisted of 1,2- and 2,3-polymerized units, and was characterized by FT-IR, 1H NMR and GPC. Further investigation shows that the polymerization of n-octylallene has some living polymerization characteristics, preparing the polymer with controlled molecular weight and narrower molecular weight distribution.

    41. Carbon Nanotubes with Phthalocyanine-Decorated Surface Produced by NH3-Assisted Microwave Reaction and Their Catalytic Performance in Li/SOCl2 Battery (pages 2059–2066)

      Zhanwei Xu, Prof. Dr. Hejun Li, Huihui Sun, Qinglin Zhang and Kezhi Li

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090344

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      Multiwalled carbon nanotube (MWCNT)-templated cobalt phthalocyanine (CoPc) assemblies are prepared by microwave reaction with the aid of NH4Cl. The assemblies display a uniform coaxial nanotube structure. In the control test, the CoPc/MWCNTs synthesized without NH4Cl exhibits the aggregation of the nanotubes of CoPc/ MWCNTs. It indicates that the use of NH4Cl as gas source is efficient in enhancing diffusion of the MWCNTs and controlling the growth of CoPc. The assemblies of CoPc/MWCNTs exhibit excellent electrochemical catalytic activity to Li/SOCl2 battery.

    42. Study on Vapor-Liquid Nucleation Rates for n-Alcohols by Density Functional Theory (pages 2067–2073)

      Huijie Wu and Prof. Dr. Xiaosen Li

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090345

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      The statistical associating fluid theory (SAFT) in conjunction with the Weeks- Chandler-Anderson (WCA) approximation for intermolecular interaction is employed to construct a non- uniform equation of state (EOS) for n-alcohols. The molecular parameters for methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol and 1-hexanol are obtained by fitting to the experimental data of vapor-liquid equilibria and then used to predict the nucleation rates under the framework of density functional theory (DFT). The predictions are found to be in quite good agreement with the experimental data. Investigation shows that the combination of DFT and SAFT is a successful approach for vapor-liquid nucleation rates of n-alcohols.

    43. Highly Selective Aldol Condensation Using Amine-functionalized SiO2-Al2O3 Mixed-oxide under Solvent-free Condition (pages 2074–2082)

      Dr. Alireza Abbaspourrad, Dr. Roozbeh Javad Kalbasi and Qin Xiao

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090346

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      Aldol condensation has been reported by an amino-functionalized SiO2-Al2O3 catalyst synthesized by condensation of the trimethoxysilylpropylamine on SiO2-Al2O3. This solid base catalyst is found to be very efficient with reusability for a number of times with consistent activity.

  3. Notes

    1. Top of page
    2. Communication
    3. Full Papers
    4. Notes
    1. Weak Interactions Involving Fluorine in Suppramolecular Assemblies of Cu(II) Complexes (pages 2083–2088)

      Chunhua Ge, Prof. Dr. Xiangdong Zhang, Jing Yin and Rui Zhang

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090347

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      Two new Cu(II) complexes, Cu(tfbz)2(Htfbz)2(phen) (1) (Htfbz=2,4,5-trifluorobenzoic acid, phen=1,10-phenanthroline) and [Cu(pfbz)2(phen)]2(Hpfbz)2 (2) (Hpfbz=pentafluorobenzoic acid), have been synthesized and structurally characterized. Interactions of C–H···F and F···F play important roles in the formation of supramolecular networks.

    2. Point Mutation Genotyping Based on Melting-Point Difference without Fluorescent Probes (pages 2089–2091)

      Xuan Meng, Jianhua Huang, Dr. Xiangxian Meng, Yanqiong Wu and Qiuhua Mo

      Version of Record online: 3 NOV 2010 | DOI: 10.1002/cjoc.201090348

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      A fidelity method for genotyping point mutations has been developed based on melting-point difference without labeled fluorescent probes. The method employs ligase to ligate two specific probes to produce a high melting temperature. The homozygotes and heterozygotes are scored accurately by obvious melting-point difference among genotypes. This method would provide an accurate and economical-cost tool for point mutation genotyping.