Chinese Journal of Chemistry

Cover image for Vol. 33 Issue 2

February, 2015

Volume 33, Issue 2

Pages 161–297

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    6. Note
    1. You have free access to this content
      Cover Picture: Combination of Solid-Phase Micro-Extraction and Direct Analysis in Real Time-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Sensitive and Rapid Analysis of 15 Phthalate Plasticizers in Beverages (Chin. J. Chem. 2/2015) (page 161)

      Mengxi Wu, Haoyang Wang, Guoqing Dong, Brian D. Musselman, Charles C. Liu and Yinlong Guo

      Article first published online: 11 FEB 2015 | DOI: 10.1002/cjoc.201590004

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      The cover picture shows a new and expeditious approach for the identification and quantification of 15 phthalate plasticizers in beverages. Phthalates are legally regulated in foods and beverages in Europe, USA and China because of their potential healthy threaten. By a combined SPME and DART-FTICR-MS approach, phthalates at sub-ng·mL−1 levels can be accurately analyzed in a short time, the limits of quantification (LOQs) were estimated to be at 0.3–5.0 ng·mL−1. This rapid and easy-to-use method provided a relatively high-throughput and powerful analytical approach for quick testing and screening phthalates in beverages and water samples to ensure food safety. More details are discussed in the article by Guo et al. on page 213–219.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    6. Note
    1. Contents: Chin. J. Chem. 2/2015 (pages 163–169)

      Article first published online: 11 FEB 2015 | DOI: 10.1002/cjoc.201590005

  3. Communications

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    6. Note
    1. Highly Enantioselective Direct Asymmetric Aldol Reaction Catalyzed by 4,5-Methano-L-proline (pages 171–174)

      Yukun Zhang, Jun Zhu, Na Yu and Han Yu

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400732

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      The 4,5-methano-L-proline was used as chiral organocatalysts in direct asymmetric aldol reactions. Under the optimal conditions, excellent enantioselectivities (up to 99% ee) were obtained with high chemical yields (up to 95%) for a series of aldehydes using only 5 mol% catalyst loading.

    2. An Efficient Nanoparticle-Supported and Magnetically Recoverable Copper(I) Catalyst for Synthesis of Furans from Ene-yne-ketone (pages 175–180)

      Yi Liu, Zhan Liu and Yingde Cui

      Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400730

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      A facile Cu2O@Fe3O4-catalyzed cyclization of ene-yne-ketone for the formation of C[BOND]O and C[DOUBLE BOND]C double bonds to prepare furans has been reported. The eco-friendly catalyst can be easily separated by magnetic adsorption and reused.

    3. Transition Metal Free Chemoselective Reduction of α,β-Unsaturated Ketones to Saturated Ketones Using Tosyl Hydrazide as a Hydrogen Donor (pages 181–184)

      Yarabally R Girish, Kanchipura R Raghavendra, Dasappa Nagaraja, Kothanahally S Sharath Kumar and Sheena Shashikanth

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400684

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      An efficient, inexpensive and simple method for the reduction of various α,β-unsaturated ketones to corresponding saturated ketones using tosyl hydrazide as a hydrogen donor in DMF using calcium oxide powder as base is developed.

    4. Layer-by-layer Assembled Multilayers of Graphene/Mono-(6-amino-6-deoxy)-β-cyclodextrin for Detection of Dopamine (pages 185–191)

      Lin Tan, Guo Wang, Nali Chen, Jianqiang Zhang and Huixia Feng

      Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400726

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      Graphene/mono-(6-amino-6-deoxy)-β-cyclodextrin multilayer films composed of graphene sheet (GS) and mono-(6-amino-6-deoxy)-β-cyclodextrin (NH2-β-CD) were fabricated easily. Combining the high surface area of GS and the active recognition sites on β-cyclodextrin (β-CD), the GS/NH2-β-CD multilayer films show excellent electrochemical sensing performance for the detection of DA with an extraordinary broad linear ranges from 2.53 to 980.05 µmol·L−1. This study offers a simple route to the controllable formation of graphene-based electrochemical sensor for the detection of DA.

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    6. Note
    1. Primer Extension Reaction Assays for Incorporation of Deoxynucleotide Analogue into DNA (pages 192–198)

      Xilong Wang, Xun Chen, Yonghui Liu and Jin Zhu

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400731

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      Primer extension reactions are commonly used for the assay of incorporation of deoxynucleotide analogues into DNA. Herein we report on the design of two novel assay protocols that utilize a dideoxynucleotide-terminated template strand and a phosphorothiolate-modified deoxynucleotide-terminated template strand without relying on radiolabeling, fluorescence reporter labeling, or removal of specific deoxynucleotide triphosphate in the reaction mixture.

    2. Non-Covalent Functionalization of Graphene with Bisphenol A for High-Performance Supercapacitors (pages 199–206)

      Haixiong Hu, Zhongai Hu, Xiaoying Ren, Yuying Yang, Ruibing Qiang, Ning An and Hongying Wu

      Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400740

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      Bisphenol A (BPA) with electrochemically reversible redox couples is selected to functionalize reduced graphene oxide (RGO) through non-covalent functionalization and the composites exhibit ultrahigh specific capacitances, good rate capability and excellent cycling stability.

    3. Fabrication of Pyrene and Tetraphenylethylene Nanostructures by a Hydrolysis-Assisted Co-Assembly (pages 207–212)

      Tianxiang Wang, Haisheng Wang, Lingbo Xing, Wenbo Zhang and Changyou Gao

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400673

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      Different nanostructures composed of 1-pyrenecarboxaldehyde (Py-CHO) and tetraphenylethylenecarboxaldehyde (TPE-CHO) were obtained by decomposition-assembly of poly(allylamine hydrochloride) (PAH)-g-Py-g-TPE at low pH, which was synthesized by grafting Py-CHO and TPE-CHO to PAH via a Schiff base reaction. The PAH-g-Py-g-TPE micelles were transformed into nanomaterials including nanoparticles (NPs), nanorods (NRs), nanotubes (NTs) and nanoribbons (NBs) at low pH, which emitted fluorescence with colors different from their counterpart NTs and NPs formed from the parent Py-CHO and TPE-CHO molecules.

    4. Combination of Solid-Phase Micro-Extraction and Direct Analysis in Real Time-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Sensitive and Rapid Analysis of 15 Phthalate Plasticizers in Beverages (pages 213–219)

      Mengxi Wu, Haoyang Wang, Guoqing Dong, Brian D. Musselman, Charles C. Liu and Yinlong Guo

      Article first published online: 9 DEC 2014 | DOI: 10.1002/cjoc.201400564

      Thumbnail image of graphical abstract

      A method for rapid identification and quantification of 15 phthalate plasticizers in beverages was developed. By a combined solid-phase micro-extraction (SPME) and direct analysis in real time mass spectrometry (DART-MS) approach, phthalates at sub-ng·mL−1 levels can be qualitatively and quantitatively analyzed in a short time. The use of ultrahigh-resolving power and the accurate mass measurement capacity naturally provided by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) minimizes the matrix interferences and thus enables the evaluation of phthalates in a complex matrix without extensive sample handlings or preparations. This rapid and easy-to-use SPME-DART-FT-ICR-MS method provided a relatively high-throughput and powerful analytical approach for quick testing and screening phthalates in beverages and water samples to ensure food safety.

    5. A Convenient Preparation of Fluorinating Reagent F-TEDA Bearing Bisphenylsulfonylimide Counterion and Its Fluorination to Oxindoles (pages 220–224)

      Wenhua Zhu, Xiaohui Hu, Fajie Wang, Xianjin Yang and Xinyan Wu

      Article first published online: 9 DEC 2014 | DOI: 10.1002/cjoc.201400680

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      A unique and practical route for the preparation of F-TEDA-N(SO2Ph)2, a kind of fluorinating reagent from NFSI was realized in high yield.

    6. Preparation of Thermosensitive Hollow Imprinted Microspheres via Combining Distillation Precipitation Polymerization and Thiol-ene Click Chemistry (pages 225–234)

      Cong Guo, Bing Wang and Juanjuan Shan

      Article first published online: 12 DEC 2014 | DOI: 10.1002/cjoc.201400693

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      The thermosensitive hollow imprinted microspheres were prepared via combining distillation precipitation polymerization and thiol-ene click chemistry. The microspheres showed excellent temperature-sensitive and controlled release properties in aqueous.

    7. Sensitive Determination of Five Priority Haloacetic Acids by Electromembrane Extraction with Capillary Electrophoresis (pages 235–240)

      Xiaoli Zhang, Haitao Zhang, Yan Liu, Lin Guo, Jiannong Ye and Qingcui Chu

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400633

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      A method for sensitive determination of five priority haloacetic acids in drinking water has been developed for the first time based on electromembrane extraction (EME) prior to CZE with capacitively coupled contactless conductivity detection (CZE- C4D). Under the optimum conditions, five haloacetic acids (monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid, and dibromoacetic acid) could be well separated from other components coexisting in water samples within 23 min, exhibiting a linear calibration over two orders of magnitude (r>0.994); the LODs were in the range of 0.17–0.61 ng/mL and the enrichment factor could be up to 671-fold. This approach offers an attractive alternative for drinking water analysis.

    8. In Situ Analysis for Herbal Pieces of Aconitum Plants by Using Direct Analysis in Real Time Mass Spectrometry (pages 241–246)

      Feng Zhou, Hongbin Zhu, Shu Liu, Kang Ma, Fengrui Song and Zhiqiang Liu

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400692

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      Aconitum plants are usually used in strain and contusion treatment in clinic use. Based on DART/MS, this study developed an analytical method to rapidly identify both the types of Aconitum preparata and their quality.

    9. Influence of Metallic Modification on Ethylbenzene Dealkylation over ZSM-5 Zeolites (pages 247–252)

      Chao Hu, Junhui Li, Wenzhi Jia, Min Liu, Zhixian Hao and Zhirong Zhu

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400677

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      Over metal-modified HZSM-5, ethylbenzene was converted to benzene and ethylene owing to dealkylation, and ethylene was converted to ethane through catalytic hydrogenation. Ethylbenzene conversion obviously increased over bifunctional catalyst.

    10. Interaction of Plasma Proteins with Tri-quaternary Ammonium Salt Cationic Surfactant Studied by QCM-D (pages 253–260)

      Man Xi and Baoyan Zhang

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400690

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      Au-COOH-S surface inhibited the adsorption of LYZ, maintained the adsorption balance of BSA, and induced the adsorption of Fib.

    11. An Approach towards Synthesis of Nanoarchitectured LiNi1/3Co1/3Mn1/3O2 Cathode Material for Lithium Ion Batteries (pages 261–267)

      Weibo Hua, Yanjie Wang, Yanjun Zhong, Guoping Wang, Benhe Zhong, Baizeng Fang, Xiaodong Guo, Shixuan Liao and Haijiang Wang

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400551

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      A vacuum distillation-crystallisation-modified coprecipitation process for synthesizing nanoarchitectured LiNi1/3Co1/3Mn1/3O2 cathode material is proposed, and the material prepared by this method shows superior electrochemical properties.

    12. Design, Synthesis and Biological Evaluation of Novel N-(4-([2,2′:5′,2′′-Terthiophen]-5-yl)-2-methylbut-3-yn-2-yl) Benzamide Derivatives (pages 268–276)

      Youquan Zhu, Haili Zhang, Danyang Wang, Lei Li, Han Xu, Huabin Li and Yuan Ma

      Article first published online: 3 FEB 2015 | DOI: 10.1002/cjoc.201400654

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      On the basis of the principle of combination of active groups, a series of novel N-(4-([2,2′:5′,2′′-terthiophen]-5-yl)-2-methylbut-3-yn-2-yl) benzamide derivatives were designed, synthesized and systematically evaluated for their antiviral activity against TMV. The bioassay results showed that most of these compounds displayed good anti-TMV activity, and some of them exhibited higher antiviral activity than commercial Ningnanmycin. QSARs proved that the van der Waals volume (V), electronic parameter (∑(∑σo+σp) and ∑σm) for the substituent R1 were very important for antiviral activities in this class.

    13. Novel Non-Coplanar and Tertbutyl-Substituted Polyimides: Solubility, Optical, Thermal and Dielectric Properties (pages 277–284)

      Chanjuan Liu, Xianglin Pei, Xiaohua Huang, Chun Wei and Xiaoyi Sun

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400587

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      A series of highly soluble and transparent aromatic polyimides were designed and synthesized from a novel diamine TADBP containing tertbutyl and 4-tertbutylphenyl side groups and five dianhydrides.

    14. Effect of Organo-Modified Nanosepiolite on Fire Behaviors and Mechanical Performance of Polypropylene Composites (pages 285–291)

      Junhao Zhang, Sergio de Juan, Antonio Esteban-Cubillo, Julio Santarén and De-Yi Wang

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400828

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      The synergistic flame retardancy of ONSep in PP/MB matrix significantly improved the fire safety, which was attributed to the improvement in forming a reinforced protective barrier on the surface of samples. Meanwhile, Young's modulus and impact strength of the composites were increased because the rigid needlelike ONSep in PP composites directly enhanced the stiffness of flame retardant composites.

  5. Note

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    6. Note
    1. Synthesis and Luminescence of Eu-N2,N6-Bis(2-hydroxyethyl)pyridine-2,6-dicarboxamide Complexes Containing Mesoporous Material (pages 292–297)

      Zheng Li, Siyu Zuo, Jingjian Zhou, Xiao Yuan, Yishan Song and Hua Zhang

      Article first published online: 14 JAN 2015 | DOI: 10.1002/cjoc.201400714

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      Ligand N2,N6-bis(2-hydroxyethyl)pyridine-2,6-dicarboxamide (L=BHPC) was synthesized and applied to construct lanthanide-based mesoporous material Eu-L-MCM-41. In the structure of resulting Eu-L-MCM-41, Eu3+ was chelated by BHPC, and the Eu-L complexes were anchored into the forming MCM-41 host by the reaction between the hydroxyl group from ligand and active Si-OH from MCM-41 host. Eu-L-MCM-41 exhibits characteristic luminescence of Eu3+.

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