Chinese Journal of Chemistry

Cover image for Chinese Journal of Chemistry

November, 2011

Volume 29, Issue 11

Pages 2213–2565

  1. Contents

    1. Top of page
    2. Contents
    3. Full Papers
    4. Note
    5. Erratum
  2. Full Papers

    1. Top of page
    2. Contents
    3. Full Papers
    4. Note
    5. Erratum
    1. Tandem Mass Spectrometric Characterization of Fetuin Sialylated Glycopeptides Enriched by TiO2 Microcolumn (pages 2229–2235)

      Wenjing Wang, Hui Liu and Zhili Li

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180385

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      The intact structures of the sialylated glycopeptides, which were enriched by TiO2, of bovine fetuin were characterized by MALDI-MS/MS, without any chemical derivation.

    2. Effect of Structural Parameters of TiO2 Nanotube Arrays upon Their Photocatalytic/Photoelectrocatalytic Performance (pages 2236–2242)

      Qing Zheng, Jinhua Li, Quanpeng Chen, Jing Bai, Baoxue Zhou and Weimin Cai

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180386

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      Cyclic voltammetric analysis in 1 mol·L−1 NaOH electrolyte under 1 mW·cm−2 UV light irradiation indicates the electrochemical window of TNAs increases with barrier layer thickness and tube length.

    3. Theoretical Study of the Intramolecular Proton Transfer in the Tautomers of Cytosine Assisted by Water (pages 2243–2248)

      Haitao Zheng, Dongxia Zhao and Zhongzhi Yang

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180387

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      The figure shows the reaction pathway for the proton-transfer of cytosine (amino-keto) with one water molecule at B3LYP/6-311+(d,p) level of theory. We have explored the influence of the water molecules and solvent effects on the intramolecular proton transfer in isomerization process.

    4. Kinetic Study and NBO Analysis of the Dehydrogenation Mechanism of Five-membered Ring Heterocyclic 2,5-Dihydro-[furan, thiophene, selenophene (pages 2249–2256)

      Abolfazl Shiroudi and Ehsan Zahedi

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180388

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      The theoretical study of the dehydrogenation of 2,5-dihydro-[furan (1), thiophene (2), and selenophene (3)] was carried out using ab initio MO and DFT methods at the B3LYP/6-311G**//B3LYP/6-311G** and MP2/6-311G**// B3LYP/6-311G** levels. The results suggest that in compounds 13, the hydrogen eliminations are controlled by LP(e)[RIGHTWARDS ARROW]δ* resonance energies. NBO results indicate that these reactions are occurring through a concerted and synchronous six-membered cyclic transition state type of mechanism.

    5. Layered Al-substituted Cobalt Hydroxides/GO Composites for Electrode Materials of Supercapacitors (pages 2257–2262)

      Yanli Chen, Zhongai Hu, Yanqin Chang, Huanwen Wang, Guorui Fu, Xiaoqing Jin and Lijing Xie

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180389

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      Al-substituted α-Co(OH)2/GO composites display specific capacitance of 1137 F·g−1 in 6 mol/L KOH solution at a current density of 1 A·g−1 within a potential range of 0–0.5 V. Moreover, only 12% loss of the initial specific capacitance was found after 500 cycles.

    6. DFT/TDDFT Studies on the Electronic Structures and Spectral Properties of Carbazole-based Blue Light-emitting Dendrimers (pages 2263–2270)

      Leijiao Li, Jikang Feng, Aimin Ren and Chiachung Sun

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180390

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      Because of great potential for application in organic light-emitting diodes, a class of carbazole-based oligomers has been systematically studied in this paper. Necessarily, the structures in the ground state have been compared with those of the excited state to trace the structural variations. We are convinced that our work should contribute to orientating the synthesis efforts and help understand the structure-property relation of these materials.

    7. Thermal Behavior of Sr(II) and Ba(II)-Diclofenac Complexes in Solid State: Study of the Dehydration and Thermal Decomposition (pages 2271–2277)

      Marcelo Kobelnik, Douglas Lopes Cassimiro, Diógenesdos Dos Santos, Clóvis Augusto Ribeiro and Marisa Spirandeli Crespi

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180391

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      Solid state compounds of general formula Sr(Diclof)2·5.7H2O and Ba(Diclof)2·4.8H2O were obtained. Thermogravimetry (TG), differential scanning calorimetry (DSC), X-ray diffraction powder patterns and microscopy analysis were used to characterize these compounds. Details concerning the dehydration and thermal decomposition as well as data of kinetic parameters have been described here. The kinetic behaviors of these stages were evaluated from several heating rates with sample masses of 2 and 5 mg in open crucibles under a nitrogen atmosphere.

    8. Low-Temperature Heat Capacities and Standard Molar Enthalpy of Formation of Gramine (C11H14N2) (pages 2278–2284)

      Jingtao Chen, Yuxia Kong, Youying Di, Weiwei Yang and Zhicheng Tan

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180392

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      Low-temperature heat capacities and thermodynamic functions were studied by adiabatic calorimetry, and standard molar enthalpy of formation of gramine was obtained by oxygen bomb combustion calorimetry.

    9. Synthesis of Thioproline Salicylic Acid Samarium Complex and Microcalorimetric Study on Effects of the Complex on the Growth Metabolism of S. pombe Cells (pages 2285–2292)

      Qiangguo Li, Hui Zhang, Xu Li, Bin Wang, Jilin Hu, Feihong Yao, Dejun Yang, Shengxiong Xiao and Lijuan Ye

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180393

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      The thermokinetic properties of the action of complex [Sm(C7H5O3)2· (C4H6NO2S)]·2H2O on growth metabolism of S. pombe were studied by means of a TAM air isothermal calorimeter at 32°C.

    10. Synthesis, Crystal Structure and Thermal Behavior of 4,5-Diacetoxyl-2-(dinitromethylene)-imidazolidine (pages 2293–2300)

      Kangzhen Xu, Min Wang, Hang Zhang, Biao Yan, Jirong Song, Bozhou Wang and Fengqi Zhao

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180394

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      4,5-Diacetoxy1-2-(dinitromethylene)-imidazolidine (DADNI) was synthesized. Crystal data of DADNI are monoclinic, space group C2/c, a=15.9167(3) Å, b=8.6816(4) Å, c=8.5209(3) Å, β=103.294(9)°, V=1145.9(3) Å3, Z=4, µ=0.150 mm−1, F(000)=600, Dc=1.682 g·cm−3, R1=0.0565 and wR2=0.1649. The kinetic equation of the decomposition reaction for DADNI is: dα/dT=(1016.64/β)×4α3/4exp(−1.582×105/RT)

    11. Effect of Explicit Water Molecules on the Color-Tuning Mechanism of the Firefly (pages 2301–2307)

      Chungang Min, Luyi Zou, Ying Sun, Jingfu Guo, Ai-min Ren and John D. Goddard

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180395

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    12. Synthesis of Multifunctional Mn-Doped CdTe/ZnS Core/Shell Quantum Dots (pages 2308–2314)

      Jianquan Lü, Shiyan Lü, Tai Ye and Xingwang Zhou

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180396

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      Synthesis of CdTe/ZnS core-shell QDs using the complexing-doping strategy.

    13. Experimental Study of the Effect of Strong Alkali on Lowering the Interfacial Tension of Oil/Heavy Alkylbenzene Sulfonates System (pages 2315–2319)

      Bixin Liu, Jirui Hou, Hongjiao Tang, Haixia Xu and Zigang Zheng

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180397

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      As shown in the scheme, this paper mainly studied the alkali effect on interfacial tension. The interfacial tensions and partition coefficients were measured and dynamic laser scattering technique was used, which will illustrate the mechanism of alkali for lowering interfacial tensions. Through this experiment, a guideline for designing the alkali/surfactant/polymer (ASP) flooding performance in oilfields can be provided.

    14. Mechanism of Gold(I)-Catalyzed Conia-ene Reaction of β-Ketoesters with Alkynes: A DFT Study (pages 2320–2326)

      Yanchun Yin, Mian Wang, Jianyi Wang, Longchang Zhou and Wengui Duan

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180398

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      The comparative studies on two possible pathways of Au(I)-catalyzed Conia-ene reaction show that the β-ketoester is the most likely to isomerize into its enol form under the assistance of trifluoromethanesulfonate. The coordination of the Au(I) catalyst to the alkynes triple bonds enhances the eletrophilic capability of the alkynes moiety, and triggers cycloisomerizaion between the enol and the alkynes to give a vinyl-Au intermediate. In the whole catalytic process, the protonation of vinyl-Au is almost spontaneous, and the formation of enol is a rate-limiting step. These results provide insight into the Au(I)-catalyzed Conia-ene reaction mechanism at the molecular level.

    15. Dissolution Modeling and Experimental Measurement of CaS-H2O Binary System (pages 2327–2336)

      Ivar Zekker, Toomas Tenno, Aare Selberg and Kalev Uiga

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180399

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      The scheme of the system of solid CaS in equilibrium with water.

    16. Storage Stability of LiFePO4/C in Humid-hot Air (pages 2337–2344)

      Xiangfeng Guo, Jun Zuo, Hui Zhan and Yunhong Zhou

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180400

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      Li3PO4 and olivine FePO4 are induced in the LiFePO4/C material after the 12 weeks aging in humid-hot air, along with the abnormal high coulombic efficiency in the first charge and discharge cycle.

    17. Ag@Bi2WO6Composites with High Visible-Light-Driven Photocatalytic Activities Prepared in UV Light Irradiation (pages 2345–2349)

      Haiyan Zhou, Yin Peng and Shuchun Qin

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180401

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      Ag@Bi2WO6 composites were synthesized by simple UV light irradiation for 5 min using Bi2WO6 and AgNO3 as raw materials. A few Ag deposited on the Bi2WO6 lead to an increase in photocatalytic activity. In addition, a few H2O2 will greatly enhance photocatalytic activity of Ag@Bi2WO6, and the proper reason is discussed.

    18. Convenient Synthesis of Terminal Alkynes from anti-3-Aryl-2,3-dibromopropanoic Acids Using a K2CO3/DMSO System (pages 2350–2354)

      Xuezhi Cheng, Jun Jia and Chunxiang Kuang

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180402

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      A convenient, efficient, and generally applicable method was developed for the synthesis of terminal alkynes from anti-3-aryl-2,3-dibromopropanoic acids in the presence of DMSO and K2CO3.

    19. Aldol Condensation and Michael Addition of 4,4-Dimethyl-cyclohexane-1,3-dione and Aromatic Aldehydes. Unconventional Substituent Effects (pages 2355–2360)

      Muharrem Kaya

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180384

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      By the cyclization of 4,4-dimethylcyclohexane-1,3-dione with different aromatic aldehydes, the xanthene regioisomers were obtained. The diversity of xanthene isomers could be determined. The electronic and steric effects on aromatic aldehydes could be observed.

    20. Preparation of Silica-bonded Propyl-diethylene-triamine-N-sulfamic Acid as a Recyclable Catalyst for Chemoselective Synthesis of 1,1-Diacetates (pages 2361–2367)

      Maryam Nouri Sefat, Abdolah Deris and Khodabakhsh Niknam

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180403

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      A simple and efficient procedure for the preparation of silica-bonded propyl-diethyl- ene-triamine-N-sulfamic acid (SPDTSA) is described. This solid acid is employed as a catalyst for the synthesis of 1,1-diacetates under solvent-free conditions.

    21. An Efficient Synthesis of N-Substituted-3-aryl-3-(2-hydroxy-4,4-dimethyl-6-oxocyclohex-1-enyl)propanamides by Four-component Reaction in Aqueous Medium (pages 2368–2372)

      Guolan Dou, Xiaoxing Zhong, Deming Wang and Daqing Shi

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180404

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      A mild and efficient synthesis of N-substituted-3-aryl-3-(2-hydroxy-4,4-dimethyl-6- oxocyclohex-1-enyl)propanamides via four-component reaction of an aldehyde, amine, Meldrum's acid and 5,5-dimethylcyclohexane-1,3-dione in the presence of TEBAC in aqueous medium is described. This method has the advantages of accessible starting materials, good yields, mild reaction conditions and eco-friendliness.

    22. Microwave-induced Stereoselectivity in Synthesis of trans-4-Aryl-3-methyl-6-oxo-4,5,6,7-tetrahydro-2H-pyrazolo[3,4-b]pyridine-5-carbonitriles (pages 2373–2378)

      Abbas Rahmati and Meysam Alizadeh Kouzehrash

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180405

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      A facile synthesis of trans isomers of 4-aryl-3-methyl-6-oxo-4,5,6,7-tetrahydro-2H-pyrazolo[3,4-b]pyridine-5-carbonitriles via three-component condensation reaction of an aldehyde, 3-amino-5-methylpyrazole and ethyl cyanoacetate in acetonitrile has been developed under microwave irradiation. This one-pot reaction proceeds without any catalyst in short times and gives the product in high selectivities and high yields.

    23. Ceric Ammonium Nitrate Catalyzed Oxidation of Aldehydes and Alcohols (pages 2379–2384)

      Ravikumar R. Gowda and Debashis Chakraborty

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180406

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      An inexpensive and efficient method for the oxidation of a variety of aromatic, aliphatic and conjugated aldehydes and alcohols using 70% t-BuOOH (water) as oxidant in the presence of catalytic amounts of ceric ammonium nitrate is described.

    24. Rate Acceleration of the Baylis-Hillman Reaction within Microreactors (pages 2385–2388)

      Jun Yang, Li Qi, Juan Qiao, Yi Chen and Huimin Ma

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180407

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      Based on microreactors, the acceleration of Baylis-Hillman reaction of cyclopent-2-enone coupled with 4-nitrobenzaldehyde was studied in the presence of imidazole via the flexible manipulation of temperature and electric field respectively.

    25. Selective Synthesis of 2-Aryl-1-benzylated-1H-benzimidazoles (pages 2389–2393)

      Hamid Reza Shaterian, Nafiseh Fahimi and Kobra Azizi

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180408

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      An efficient and simple procedure was developed for the green synthesis of various 2-aryl-1-benzylated-1H-benzimidazoles in high yields by condensation of o-phenylene-diamine with aldehydes with P2O5/SiO2 as catalyst under solvent-free and ambient conditions.

    26. Design, Synthesis, and Insecticidal Activity of 1,5-Diphenyl-1-pentanone Analogues (pages 2394–2400)

      Shaoxiang Yang, Tieniu Kang, Changhui Rui, Xinling Yang, Yufeng Sun, Zining Cui and Yun Ling

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180409

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      Three series of novel 1,5-diphenyl-1-pentanone derivatives were designed and synthesized. Their structures were characterized by IR, 1H NMR techiniques and elemental analysis. The insecticidal activities of the title compounds were preliminarily evaluated. The results of bioassay indicated that the compounds X11X30 displayed good insecticidal activity against Aphis gossypii, higher than lead compound A and compounds X1X10. Some of them also showed excellent activities against Plutella xylostella (L.) and Tetranychus cinnabarinus (Boisduval) at 600 mg·L−1.

    27. Synthesis and Herbicidal Activity of Novel N-(2-Fluoro-5(3-methyl-2,6-dioxo-4-(trifluoromethyl)-2,3-dihydro-pyrimidin-1(6H)-yl)phenyl)-2-phenoxyacetamide Derivatives (pages 2401–2406)

      Daoxin Wu, Jiong Sun, Mingzhi Huang, Hongbo Mo, Xiaoguang Wang, Hongwei Li, Yeguo Ren, Zhibing Hu, Lian He and Dulin Yin

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180410

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      Thirteen novel N-(2-fluoro-5-(3-methyl-2,6-dioxo-4-(trifluoromethyl)-2,3-dihydro-pyrimidin-1(6H)-yl)phenyl)-2-phenoxy)acetamides were designed and synthesized utilizing 4-fluoro-aniline and ethyl 3-amino-4,4,4-trifluorobut-2-enoate as starting materials. Compounds 4a4i showed good herbicidal activities at both pre-emergence and post-emergence treatment against two or three kinds of dicotyledonous weeds, at the dosage of 75 g ai/ha.

    28. Tandem One-pot Synthesis of Polysubstituted 1,3-Thiazine Derivatives (pages 2411–2415)

      Shuliang Wang, Xiang Wang, Mansu Tu, Bo Jiang and Shujiang Tu

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201100067

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      A tandem one-pot synthesis of polysubstituted 1,3-thiazines has been developed by reacting with cyanoacetamide and isothiocyanate derivatives to give rise to 2-cyano-3-mercaptoacrylamides, which are trapped in situ by various aldehydes or diversely substituted ketones through intermolecular cyclization, providing polysubstituted 1,3-thiazine derivatives in short reaction times with good to excellent yields.

    29. AIM and ELF Analyses of Halogen Bonding in NCS:BrCl Complexes (pages 2416–2420)

      Xiaoyan Li, Jie Sun, Xueying Zhang, Yanli Zeng, Shijun Zheng and Lingpeng Meng

      Version of Record online: 13 SEP 2011 | DOI: 10.1002/cjoc.201100055

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      The halogen bonding in NCS: BrCl complexes was studied by the means of AIM and ELF analysis.

    30. Synthesis of Pyrazolo[3,4-d]pyrimidin-4-ones Catalyzed by Br?nsted-acidic Ionic Liquids as Highly Efficient and Reusable Catalysts (pages 2421–2426)

      Niloofar Tavakoli-Hoseini, Raheleh Moloudi, Abolghasem Davoodnia and Mohammad Shaker

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180411

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      A convenient and efficient method for the synthesis of pyrazolo[3,4-d]pyrimidin-4-ones via heterocyclization reaction of 5-amino-1H-pyrazole-4-carboxamides with triethyl orthoesters using two Br?nsted-acidic ionic liquids, 3-methyl-1-(4-sulfonic acid)butylimidazolium hydrogen sulfate [MIM+(CH2)4SO3H][HSO4] or N-(4-sulfonic acid)butyl triethylammonium hydrogen sulfate [Et3N+(CH2)4SO3H][HSO4], as efficient homogeneous catalysts under solvent-free conditions is described.

    31. A Facile One-Pot Three-Component Synthesis of 5-(Trifluoromethyl)-4,7-dihydro-[1,2,4]-triazolo[1,5-a]pyrimidine Derivatives in Ionic Liquid (pages 2427–2432)

      Tuanjie Li, Changsheng Yao, Song Lei, Chenxia Yu and Shujiang Tu

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180412

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      An efficient one-pot synthesis of 5-(trifluoromethyl)-4,7-dihydro-7-aryl-[1,2,4]triazolo[1,5-a]pyrimidine derivatives was performed via the reaction of aryl aldehyde, 3-amino-1,2,4-triazole and ethyl 4,4,4-trifluoro-3-oxobutanoate or 4,4,4-trifluoro-1-phenylbutane-1,3-dione in ionic liquid. This method has the advantages of short synthetic route, operational simplicities, mild reaction conditions, high yields and eco-friendliness.

    32. Chiral Cinchona Alkaloid-Thiourea Catalyzed Mannich Reaction for Enantioselective Synthesis of β-Amino Ketones Bearing Benzothiazol Moiety (pages 2433–2438)

      Peng Lin, Baoan Song, Pinaki S. Bhadury, Deyu Hu, Yuping Zhang, Linhong Jin and Song Yang

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180413

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      Mannich reactions of imine with acetylacetone were effectively catalyzed by the modified chiral cinchona alkaloid-derived thiourea. The reactions led to chiral β-amino carbonyl compounds in high yields and good enantioselectivities. The study demonstrated for the first time that Mannich reactions of unmodified acetylacetone with heterocyclic imine derived from benzothiazole can be promoted by chiral bifunctional organocatalyst.

    33. Heterogeneous Green Catalyst for Oxidation of Cyclohexene and Cyclooctene with Hydrogen Peroxide in the Presence of Host (Nanocavity of Y-zeolite)/Guest (N4-Cu(II) Schiff Base Complex) Nanocomposite Material (pages 2439–2444)

      Maryama Lashanizadegan, Saeed Rayati and Zeinab Dejparvar Derakhshan

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180414

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      Copper(II) complex of a Schiff base ligand derived from pyrrolcarbaldehyde and o-phenylenediamine (H2L) has been synthesized and encapsulated in Y-zeolite matrix. The hybrid material has been characterized by elemental analysis, IR and UV-Vis spectroscopic studies as well as X-ray diffraction (XRD) pattern. The encapsulated copper(II) catalyst is an active catalyst for the oxidation of cyclooctene and cyclohexene using H2O2 as oxidant.

    34. Efficient One-step Synthesis and Properties of Photochromic Diarylethenes Having an Indene Bridging Unit (pages 2445–2450)

      Jiayu Jin and Lei Zou

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180415

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      Two novel isomeric photochromic diarylethenes with an indene bridging unit have been prepared by a simple and efficient one-step synthesis method. Their properties, including photochromic behavior, fluorescent properties and fatigue resistance, have been investigated.

    35. Study of the Reaction of 5-Aryl-7-hydrazino-2-phenylpyra-zolo[1,5-c]pyrimidines with 1,3-Dicarbonyl Compounds (pages 2451–2460)

      Yan-Song Zheng and Kamal F. M. Atta

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180416

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      A series of novel 5-aryl-7-(3,5-dimethyl-1H-pyrazol-1-yl)-2-phenylpyrazolo[1,5-c]-pyrimidines and 1-(5-aryl-2-phenylpyrazolo[1,5-c]pyrimidin-7-yl)-3-methyl-1H-pyrazol-5-ols were synthesized by condensation of 5-aryl-7-hydrazino-2-phenylpyrazolo[1,5-c]pyrimidines with acetylacetone and ethyl acetoacetate, respectively. The electrophilic substitution reactions of the obtained pyrazolylpyrazolopyrimidines were also studied.

    36. Synthesis of Functionalized Thiophenes by Four-component Reactions of 1,3-Thiazolidinedione, Aromatic Aldehydes, Cyanoacetamide and Cyclic Secondary Amines (pages 2461–2464)

      Rong Yao, Eryan Xia, Jing Sun and Chaoguo Yan

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180417

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      The polysubstituted thiophene derivatives were conveniently prepared by the four-component reactions of 1,3-thiazolidinedione, aromatic aldehydes, cyanoacetamide and cyclic secondary amines such as pyrrolidine, morpholine and piperidine. The reaction mechanism is believed to involve domino reactions of Knoevenagel condensation, Michael addition, ring-opening and recyclization of 1,3-thiazolidinedione.

    37. An Efficient Synthesis of 3,3′,4,4′-Tetrahydro-4,4′-bibenzo[e][1,3]oxazine-2,2′-dione Derivatives with the Aid of Low-valent Titanium (pages 2465–2470)

      Guolan Dou, Fang Sun, Xuan Zhao and Daqing Shi

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180418

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      Synthesis of 3,3′,4,4′-tetrahydro-4,4′-bibenzo[e][1,3]oxazine-2,2′-diones via reaction of salicylidendphenylhydrazone and triphosgene with the aid of low-valent titanium reagent is described. This method has the advantages of accessible starting materials, good yields and short reaction time.

    38. Silica-supported Perchloric Acid Catalyzed One-pot Synthesis of 1,4-Dihydropyridines (pages 2471–2475)

      Dasari Ramesh, Singanaboina Rajaram, Manchala Narasimhulu, Thummalpally Srikanth Reddy, Kondempudi Chinni Mahesh, Gajji Manasa and Yenamandra Venkateswarlu

      Version of Record online: 9 SEP 2011 | DOI: 10.1002/cjoc.201100032

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      An efficient synthesis of 1,4-dihyropyridines is described by the reaction between α,β-unsaturated aldehydes, aromatic amines and β-keto esters in prsence of silica supported perchloric acid.

    39. Asymmetric Reduction of 2-Chloro-3-oxo Esters by Transfer Hydrogenation (pages 2476–2480)

      Jinjin Bai, Shifeng Miao, Yun Wu and Yawen Zhang

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180419

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      Asymmetric reduction of 2-chloro-3-oxo esters was achieved by catalytic transfer hydrogenation using [RuCl2(p-cymene)](S,S)-TsDPEN as the chiral catalyst and HCOOH-Et3N as the hydrogen source. Moderate to good yields (up to 85%) and good enantioselectivities (up to 98% ee) were obtained.

    40. Direct Electrochemistry of Hemoglobin Based on Fe3O4@SiO2 Nanoparticles Modified Electrode (pages 2481–2486)

      Rongjing Cui, Fan Yin, Lijuan Zhou and Hongcheng Pan

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180420

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      The core-shell MNPs inherit large surface-to-volume ratio and high surface reaction activity. Hb was immobilized on the core-shell magnetic material to form Hb/Fe3O4@SiO2 bioconjunction. The as-prepared Hb/Fe3O4@SiO2/ITO electrode exhibited good analytical performance towards the quantification of hydrogen peroxide.

    41. Non-hydrolytic Sol-gel Methodology to Prepare a Molecularly Imprinted, Organic-silica Hybrid-based Stir Bar for Recognition of Sulfonylurea Herbicides (pages 2487–2494)

      Bianjing Si and Jie Zhou

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180421

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      A novel imprinted organic- silica hybrid-based stir bar was prepared by in situ polymerization based on molecular imprinting and a non-hydrolytic sol-gel process. Experiments results showed that using six sulfonylureas as substrates the imprinted hybrid-based stir bar gave high selectivity for the template, nicosulfuron compared to the non-imprinted organic-silica hybrid-based stir bar. The highly sensitive detection method developed by coupling with HPLC/UV was successfully applied to the analysis of NS in tap water and provided good recoveries and reproducibility.

    42. New Modes for the Prediction of Gas Chromatographic Relative Retention Times of Polybrominated Diphenyl Ethers (pages 2495–2504)

      Zhongsheng Yi, Lianchen Li, Aiqian Zhang and Liansheng Wang

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201100039

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      Correlation coefficients of LMOCV (QLMOCV2) of 10 datasets vs. number of descriptors.

    43. Enhanced Visible-Light-Induced Photoelectrocatalytic Degradation of Methyl Orange by CdS Sensitized TiO2 Nanotube Arrays Electrode (pages 2505–2510)

      Dawei Jiang, Tianshu Zhou, Qi Sun, Yanyan Yu, Guoyue Shi and Litong Jin

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180422

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      CdS sensitized TiO2 nanotube arrays (CdS/TiO2NTs) electrode was synthesized with the CdS deposition on the highly ordered titanium dioxide nanotube arrays (TiO2NTs) by sequential chemical bath deposition method (S-CBD). The as-prepared CdS/TiO2NTs was characterized by field-emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). The results indicated that the CdS nanoparticles were effectively deposited on the surface of TiO2NTs.

    44. Metabolic Profiling of Human Colorectal Cancer Using High Resolution 1H Nuclear Magnetic Resonance Spectroscopy (pages 2511–2519)

      Wenxue Chen, Xiaoyan Zhou, Dan Huang, Fener Chen and Xiang Du

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180423

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      In this study, the ratios of metabolite concentration (normalized integrals) were used to differentiate the CRC from normal mucosa tissues using HR 1H NMR spectra of the tissue extracts. As shown in Figure A and B, the prediction of CRC had 90% sensitivity and 95% specificity when the mI/Tau ratio was at 2.48 (horizontal dashed lines), and had 100% sensitivity and 90% specificity if the mI/(Orn+PA) ratio was at 5.41. Thus, the ratios of myo-inositol/taurine and myo-inositol/(ornithine+polyamine) may become potentially valuable biomarkers for detecting malignant changes in the healthy mucosa tissues.

    45. A Novel Chemiluminescence Immunoassay Using Solid-Phase Antigen for Free 17β-Estradiol in Human Serum (pages 2520–2524)

      Yuanyuan Qi, Hui Chen, Zhen Lin, Guonan Chen and Jinming Lin

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180424

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      A high-performance chemiluminescence immunoassay, with long-term durability, good precision and time-saving, was proposed for the detection of free 17β-estradiol (E2) in human serum. Ninety-six microplates were coated with bovine serum albumin conjugated E2 antigen as solid phase for the immunoassay. The E2-BSA antigen coated on the microplate and the E2 antigen in the sample competed for the binding sites on the horseradish peroxidase (HRP) labeled anti-E2 antibody. Chemiluminescence reaction was subsequently carried out by HRP catalyzing luminol-H2O2 substrates, and the chemiluminescence intensity was inversely proportional to the amount of analyte in human sera samples.

    46. Rapid Determination of Metabolites in Bio-fluid Samples by Raman Spectroscopy and Optimum Combinations of Chemometric Methods (pages 2525–2532)

      Xihui Bian, Da Chen, Wensheng Cai, Edward Grant and Xueguang Shao

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180425

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      Raman spectroscopy was used for rapid quantitative analysis of eight metabolites in bio-fluid samples with the help of chemometric methods. Six pretreatment, three variable selection methods and their combinations were used and compared. The results show that parsimonious and precise model can be obtained with the help of the chemometric methods for quantitative analysis of these metabolites.

    47. Near Infrared Spectral Similarity Combined with Variable Selection Method in the Quality Control of Flos Lonicerae: A Preliminary Study (pages 2533–2540)

      Ni Xin, Qinghua Meng, Yizhen Li and Yuzhu Hu

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180426

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      Variable selection together with modelling techniques is utilized to select representative variables that are used to calculate the similarity. The similarity based on the characteristic variables is then used for evaluating the fingerprints of Flos Lonicerae. The results show that the combination of variable selection method, modelling techniques and similarity analysis might be a powerful tool for quality control of traditional Chinese medicine (TCM).

    48. Developing a Nano-Biosensor for DNA Hybridization Using a New Electroactive Label (pages 2541–2551)

      Jahan Bakhsh Raoof, Reza Ojani, Maryam Ebrahimi and Ezat Hamidi-Asl

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180427

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      Development of electrochemical DNA hybridization biosensors based on carbon paste electrode (CPE) and gold nanoparticle modified carbon paste electrode (NGMCPE) as transducers and ethyl green (EG) as a new electroactive label is described.

    49. Synthesis of PANI and Study of Morphology in the Process of Polymerization (pages 2552–2556)

      Lixia Zhang, Lifang Liang, Wei Su, Shunzhen Liu and Jinhao Chen

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180428

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      The polyaniline micro/nanostructure was prepared by a self-assembly process with molybdic acid as dopants in the presence of ammonium persulfate as the oxidant. It was found that the morphology of PANI micro/nanostructure was affected by the concentration of the dopant, and the morphology of PANI changed from nanofibers to co-existence of nanofibers and microspheres as the molar ratio of molybdic acid to aniline varied from 0.01 to 1.5.

    50. Effect of Medium Acidity and Photostability of 3-(4-Dimethylamino-phenyl)-1-(2,5-dimethyl-thiophen-3-yl)-propenone (DDTP): A New Green Emitting Laser Dye (pages 2557–2561)

      Samy A. El-Daly, Abdullah M. Asiri, Salman A. Khan, Khalid A. Alamry and Mahmoud A. Hussein

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201100028

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  3. Note

    1. Top of page
    2. Contents
    3. Full Papers
    4. Note
    5. Erratum
    1. Phase Diagram of Na2S2O3)+t-Butanol+Water at Ambient Pressure and Temperature (pages 2562–2564)

      Sandip R. Sabale

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180429

      Thumbnail image of graphical abstract

      The polyaniline micro/nanostructure was prepared by a self-assembly process with molybdic acid as dopants in the presence of ammonium persulfate as the oxidant. It was found that the morphology of PANI micro/nanostructure was affected by the concentration of the dopant, and the morphology of PANI changed from nanofibers to co-existence of nanofibers and microspheres as the molar ratio of molybdic acid to aniline varied from 0.01 to 1.5.

  4. Erratum

    1. Top of page
    2. Contents
    3. Full Papers
    4. Note
    5. Erratum
    1. You have free access to this content
      Erratum: Aggregation Behaviors of Tricarbocyanine dye in Water and in AOT Reverse Micelles (page 2565)

      Ruixue Zhu, Rong Lü and Anchi Yu

      Version of Record online: 28 NOV 2011 | DOI: 10.1002/cjoc.201180430

      This article corrects:

      Aggregation Behaviors of Tricarbocyanine Dye in Water and in AOT Reverse Micelles

      Vol. 29, Issue 3, 405–410, Version of Record online: 28 MAR 2011

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