Chinese Journal of Chemistry

Cover image for Vol. 32 Issue 9

September, 2014

Volume 32, Issue 9

Pages 825–920

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    1. You have free access to this content
      Cover Picture: Ordered Ultrathin Films of Perylene Anions and Layered Double Hydroxide Using Exfoliation-coassembly Method (Chin. J. Chem. 9/2014) (page 825)

      Yingkui Zhang, Ming Song, Rongping Yun, Qingyun Meng and Dongpeng Yan

      Article first published online: 16 SEP 2014 | DOI: 10.1002/cjoc.201490020

      Thumbnail image of graphical abstract

      The cover picture shows an ordered layered double hydroxide (LDH)-based organic-inorganic supramolecular hybrid material. An exfoliation-coassembly approach has been developed for the construction of ultrathin film (UTF) materials based on the layer-by-layer assembly of layered double hydroxide (LDH) nanosheets and perylene anions with the polyanions (such as poly 4-styrene sulfonate and poly vinyl sulfonate) as carriers. Due to the highly ordered supramolecular structure, the UTFs present polarized luminescence with the high emissive anisotropy. Such exfoliation-coassembly strategy can be extended to other similar systems to develop various LDH-based luminescent film materials. More details are discussed in the article by Yan et al. on page 859–864.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    1. Contents: Chin. J. Chem. 9/2014 (pages 827–831)

      Article first published online: 16 SEP 2014 | DOI: 10.1002/cjoc.201490021

  3. Communications

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    1. Copper-Catalyzed Three-Component Azidotrifluoromethylation/Difunctionalization of Alkenes (pages 833–837)

      Mingbo Yang, Wenlu Wang, Yin Liu, Lijie Feng and Xuexia Ju

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400167

      Thumbnail image of graphical abstract

      The intermolecular azidotrifluoromethylation of alkenes under copper catalysis is presented here. The reaction proceeded smoothly under gentle temperature, which gave the bifunctional olefins in high yields. Furthermore, 1,3-dipolar reactions between azide-containing products and phenylacetylene revealed great potential in molecular modification by using this method.

    2. Imine-Linked Covalent Organic Framework on Surface for Biosensor (pages 838–843)

      Peiyuan Wang, Mengmeng Kang, Shumin Sun, Qiang Liu, Zhihong Zhang and Shaoming Fang

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400260

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      Imine-linked covalent organic frameworks on amino functionalized silicon substrate were constructed via the reaction between 1,3,5-benzenetricarboxaldehyde and 1,4-diaminobenzene and used as biosensor for BSA adsorption and probe DNA immobilization.

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Communications
    5. Full Papers
    1. A New Cyclization/Decarboxylation Reaction of Isatins with Acyl Chlorides for the Facile Synthesis of 3-Alkenyl-Oxindoles (pages 844–852)

      Lin Chen, Zhijun Wu, Lin Peng, Qilin Wang, Xiaoying Xu and Lixin Wang

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400320

      Thumbnail image of graphical abstract

      The first cyclization/decarboxylation reaction of isatins with acyl chlorides promoted by 4-dimethylaminopyridine (DMAP) was described and a series of desired 3-alkenyl-oxindoles were obtained in good yields (up to 80%) and E/Z selectivities (up to 6.4/1).

    2. Enantioselective Construction of Functionalized Thiochromans via Squaramide-Catalyzed Asymmetric Cascade Sulfa-Michael/Michael Addition (pages 853–858)

      Yi Yang and Daming Du

      Article first published online: 25 AUG 2014 | DOI: 10.1002/cjoc.201400391

      Thumbnail image of graphical abstract

      An efficient enantioselective cascade sulfa-Michael/Michael addition reaction of trans-3-(2-mercaptophenyl)-2-propenoic acid ethyl ester with nitroalkenes catalyzed by a chiral squaramide catalyst was disclosed. This cascade reaction afforded thiochroman derivatives with three contiguous stereocenters in high yields (up to 94%), excellent diastereoselectivities (up to >25:1 dr) and enantioselectivities (up to 99% ee).

    3. Ordered Ultrathin Films of Perylene Anions and Layered Double Hydroxide Using Exfoliation-coassembly Method (pages 859–864)

      Yingkui Zhang, Ming Song, Rongping Yun, Qingyun Meng and Dongpeng Yan

      Article first published online: 3 JUL 2014 | DOI: 10.1002/cjoc.201400284

      Thumbnail image of graphical abstract

      Perylene 3,4,9,10-tetracarboxylate (PTCB) and polymer anions (such as poly 4-styrene sulfonate (PSS) and poly vinyl sulfonate (PVS)) were co-assembled with layered double hydroxides (LDHs) nanosheets to obtain orderly ultrathin films, which show polarized luminescence.

    4. N-Heterocyclic Carbene-catalyzed Reactions of o-Aminonitriles with Carbonyl Compounds Approach to 2,3-Dihydroquinazolin-4(1H)-ones (pages 865–870)

      Hongxin Chai, Jiarong Li, Liupan Yang, Mingxing Liu, Deli Yang, Qi Zhang and Daxin Shi

      Article first published online: 25 AUG 2014 | DOI: 10.1002/cjoc.201400381

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      Efficient procedure for the synthesis of 2,3-dihydroquinazolin-4(1H)-one derivates catalyzed by N-heterocyclic carbene.

    5. Water-Promoted Ring-Opening Reactions of N-Substituted Saccharins and Phthalimides by Amines (pages 871–877)

      Lisha Bai, Xuan Zhang and Ning Ma

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400253

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      Reactions of N-substituted saccharins and phthalimides with amines could be promoted by water. Various o-sulfamoyl benzamides and N,N′-disubstituted phthalamides were prepared in moderate to good yields. These reactions have prominent advantages, such as short reaction time, less by-products and simple isolation of the products.

    6. Impact of Magnesium(II) on Beryllium Fluorides in Solutions Studied by 19F NMR Spectroscopy (pages 878–882)

      Yixiang Liu, Xian Mao, Maili Liu and Ling Jiang

      Article first published online: 25 AUG 2014 | DOI: 10.1002/cjoc.201400265

      Thumbnail image of graphical abstract

      The impact of magnesium(II) on beryllium fluorides was systematically elucidated by 19F NMR spectroscopy. BeF42− was found to be most affected by magnesium(II) after ionic strength correction. Mechanism of the effects is proposed involving ion pair formation between Mg2+ and beryllium fluoride.

    7. Copper(II)-Catalyzed Synthesis of N-Substituted-3-amino-4-cyano-isoquinoline-1(2H)-ones by the Reaction of N-Substituted-2-iodobenzamides with Malononitrile (pages 883–888)

      Yeye Liu, Runsheng Zeng, Jie Pan and Jianping Zou

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400237

      Thumbnail image of graphical abstract

      A novel Cu(OAc)2·H2O catalyzed coupling reaction of 2-iodobenzamides with malononitrile to afford 2-substituted-3-amino-4-cyano-isoquinoline-1(2H)-ones is described. The reaction proceeded in DMSO at 90°C for 5 h in nitrogen without external ligands.

    8. Catalyst-Free Reaction in Water: Synthesis of Functionalized Tetrahydroindole Derivatives via Three-Component Domino Reaction (pages 889–896)

      Xian Feng, Jianjun Wang, Wei Lin, Juanjuan Zhang, Zhibin Huang and Daqing Shi

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400312

      Thumbnail image of graphical abstract

      An environmentally benign and efficient method has been developed for the synthesis of functionalized tetrahydroindole derivatives in aqueous media under catalyst-free conditions, by simply combining a phenylglyoxal monohydrate, an enaminone, and a barbituric acid. The advantages of this method are that it is catalyst free, has an easy workup, provides good yields, and uses water as solvent, which make this procedure facile and practical.

    9. Theoretical Studies on the Reactions of 1,1,2,2,3,3,4-Heptafluorocyclopentane with Hydroxyl and Hydrogen Free Radicals (pages 897–908)

      Dayong Lu, Mingyong Chao and Xiaomeng Zhou

      Article first published online: 25 AUG 2014 | DOI: 10.1002/cjoc.201400319

      Thumbnail image of graphical abstract

      Ab inito and density functional theory are used to deduce the possible reaction pathways for the reactions of 1,1,2,2,3,3,4-heptafluorocyclopentane (F7A) with hydroxyl and hydrogen free radicals at the CCSD/cc-pVDZ//B3LYP/6-311++G(d,p) level of theory.

    10. Polyvinylpyrrolidone as an Efficient Stabilizer for Silver Nanoparticles (pages 909–913)

      Weidong Huang, Linxia Zhang, Qiuping Yang and Zhimin Wang

      Article first published online: 20 JUL 2014 | DOI: 10.1002/cjoc.201400349

      Thumbnail image of graphical abstract

      Surfactants screening demonstrated that PVP was an satisfactory stabilizer for AgNPs, which not only was effective at low concentration (0.1%, V/V), but also could protect silver colloids from aggregation for a long period at 1 mol·L−1 NaCl, and 6 h even at 3 mol·L−1 NaCl. It is worth pointing out that aggregation induced by salt is an irreversible process, that is, if sufficient NaCl solution was first added to silver colloids, the aggregated nanoparticles would not disperse nomatter which surfactant was added. The blue and red in the syringes represent surfactants and NaCl, respectively.

    11. Enhanced Salt Tolerance of Polyurethane Based Multilayer Films (pages 914–920)

      Xiaoxia Hu, Jie Xu, Shimei Xu, Jide Wang and Shun Feng

      Article first published online: 3 JUL 2014 | DOI: 10.1002/cjoc.201400303

      Thumbnail image of graphical abstract

      Polyurethane based multilayer films fabricated by Layer-by-Layer technique showed improved salt tolerance after introducing strong polyelectrolyte poly(styrene sulfonic acid) sodium (PSS), which exhibits potential usage in controlled drug delivery, especially in the tissues or organs with high salt concentration (like kidney) for sustained drug release.

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