Asian Journal of Organic Chemistry

Cover image for Vol. 3 Issue 7

Managing Editor: Richard Threlfall; Editorial Board Chairs: Sung Ho Kang, Keiji Maruoka, Deqing Zhang

Online ISSN: 2193-5815

Associated Title(s): Advanced Synthesis & Catalysis, Chemistry – An Asian Journal, European Journal of Organic Chemistry

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January 20, 2014

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Recently Published Articles

  1. Upward Trend in Catalytic Efficiency of Rare-Earth Triflate Catalysts in Friedel–Crafts Aromatic Sulfonylation Reactions

    Vo Thu An Nguyen, Prof. Dr. Fritz Duus and Prof. Dr. Thach Ngoc Le

    Article first published online: 22 JUL 2014 | DOI: 10.1002/ajoc.201402067

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    Going up! The upward trend in efficiency of lanthanide (Ln) triflates in catalyzing aromatic sulfonylation reaction correlates with the lanthanide sequence in the periodic table. Various related physical properties of lanthanide ions were found to have some influence on the catalytic activity.

  2. One-Pot Copper-Catalyzed Aerobic Decarboxylative Coupling of Phenylacetic Acids with o-Aminobenzenes and Dioxygen as the Oxidant Leading to Benzoxazoles and Benzothiazoles

    Daoshan Yang, Kelu Yan, Wei Wei, Laijin Tian, Yuanyuan Shuai, Ruixia Li, Jinmao You and Prof. Hua Wang

    Article first published online: 22 JUL 2014 | DOI: 10.1002/ajoc.201402085

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    A fair cop: A copper-catalyzed synthesis of benzoxazole and benzothiazole derivatives via cascade reactions of substituted o-aminobenzenes with phenylacetic acids under dixoygen has been developed. The method is practical and the starting materials are readily available. These advantages provide an opportunity for the construction of diverse and useful benzoxazole and benzothiazole motifs within organic, medicinal, and materials chemistry

  3. A Ruthenium-Based Light-Harvesting Antenna Bearing an Anthracene Moiety in Dye-Sensitized Solar Cells

    Dr. Georgios C. Vougioukalakis, Dr. Maria Konstantakou, Dr. Eleftherios K. Pefkianakis, Antonios N. Kabanakis, Dr. Thomas Stergiopoulos, Dr. Athanassios G. Kontos, Dr. Aikaterini K. Andreopoulou, Prof. Dr. Joannis K. Kallitsis and Dr. Polycarpos Falaras

    Article first published online: 14 JUL 2014 | DOI: 10.1002/ajoc.201402096

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    Ru-thlessly efficient: A heteroleptic ruthenium-based light-harvesting antenna coordinated with a phenylanthracene-substituted terpyridine, a bipyridine, and a NCS ligand was synthesized. TiO2 films sensitized by this photosensitizer were studied through various techniques. The photosensitizer was evaluated in I/I3-based liquid electrolyte dye-sensitized solar cells, affording overall power conversion efficiencies up to 3.75 %.

  4. Fluorescent Probes for Hydrogen Sulfide Detection

    Bo Peng and Prof. Ming Xian

    Article first published online: 2 JUL 2014 | DOI: 10.1002/ajoc.201402064

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    Probing for a pong? Hydrogen sulfide (H2S) is an important signaling molecule with potent cytoprotective actions. The detection of H2S in biological samples is still a challenge. In this Focus Review, we provide an overview of current progress in fluorescence measurements for H2S. The development and properties of some representative reaction-based H2S fluorescent probes are discussed.

  5. A Practical Approach for the Oxidation of Unactivated Csp3[BOND]H Bonds with o-Nitro(diacetoxyiodo)benzene as an Efficient Hypervalent Iodine(III)-Based Oxidizing Agent

    Dr. Shin A. Moteki, Sermadurai Selvakumar, Tiexin Zhang, Asuka Usui and Prof. Dr. Keiji Maruoka

    Article first published online: 2 JUL 2014 | DOI: 10.1002/ajoc.201402087

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    A bit hyper: A practical approach for the oxidation of unactivated Csp3[BOND]H bonds by o-nitro(diacetoxyiodo)benzene is presented. The nitro group coordinates to the adjacent iodine center through dipolar interaction, which leads to a single substitution of the acetate ligand by tert-butyl hydroperoxide (TBHP). As a result, a strong iodanyl radical is formed, which can activate the inert Csp3[BOND]H bonds in a highly efficient manner.