HIRASHITA Tsunehisa

写真a

Affiliation Department etc.

Department of Life Science and Applied Chemistry
Department of Life Science and Applied Chemistry

Title

Associate Professor

Mail Address

E-mail address

Research Fields, Keywords

-

Graduate School

  •  
    -
    1999.03

    Nagoya Institute of Technology  Graduate School, Division of Engineering  Doctor's Course  Completed

Degree

  • Nagoya Institute of Technology -  Master (Engineering)

  • Nagoya Institute of Technology -  Doctor (Engineering)

Field of expertise (Grants-in-aid for Scientific Research classification)

  • Organic chemistry

  • Synthetic chemistry

 

Research Career

  • Organic Synthesis by Using Organometallic Compounds

    Collaboration in Organization   (not selected)  

    Project Year:  2002.04  -  Now

Papers

  • 5-Nitroso-1,3-diphenyltetrazolium salt as a mediator for the oxidation of alcohols

    Yuta Matsukawa, Tsunehisa Hirashita, Shuki Araki

    Tetrahdron ( Elsevier )    2017  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    We describe the synthesis of a mesoion-derived nitroso compound, 5-nitroso-1,3-diphenyltetrazolium tetrafluoroborate (1), and its application in the oxidation of alcohols. The structure of 1 was fully characterized by X-ray analysis, showing that it exists as a monomer in the solid state. In the cyclic voltammetric analysis of 1, a reversible redox peak was observed at 0.43 V (vs. Ag/Ag+ in MeCN) under acidic conditions. It was subsequently shown that the nitrosotetrazolium salt 1 is capable of stoichiometrically oxidizing alcohols to the corresponding carbonyl compounds effectively. This nitroso heterocycle and its reduced form, i.e., the corresponding mesoionic hydroxyamide, participate in a redox cycle involving the catalytic oxidation of alcohols by the aid of HNO3 under mild condition

  • Ionic TEMPO in Ionic Liquids: Specific Promotion of the Aerobic Oxidation of Alcohols

    Tsunehisa Hirashita,*[a] Makoto Nakanishi,[a] Tomoya Uchida,[a] Masakazu Yamamoto,[a]

    ChemCatChem   8   2704 - 2709   2016.08  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

    The main objective of this study was to design a recyclable
    TEMPO (2,2,6,6-tetramethylpiperidinyl-N-oxyl) derivative that
    could be used as a catalyst in an ionic liquid solvent for the
    aerobic oxidation of alcohols by using NaNO2 and HCl as cocatalysts.
    To this end, a TEMPO derivative bearing a quaternary
    ammonium group, [4-Bu2MeN-TEMPO][PF6] (1), was prepared.
    It was subsequently shown that this ionic TEMPO derivative is
    an efficient catalyst for the aerobic oxidation of a variety of primary
    and secondary alcohols. It exhibits a synergistic effect
    with ionic liquid solvents and readily outperforms analogous
    oxidations in methylene chloride. Moreover, the ionic TEMPO
    could be recycled five times with no loss of activity.

  • Analysis of Pigments in the Printing Inks of the First Japanese Postage Stamps, the Hand-Engraved Issues

    Araki, Shuki; Kondo, Emi; Shibata, Tomohiro; Yokota,Takeshi; Marena, Suzuki, Hirashita, Tsunehisa Yamaguchi, Koichi; Matsumoto, Hirok; Murase, Yoshiaki

    Bulletin of the Chemical Society of Japan ( 日本化学会 )    2016.02  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Condensation of indoles and aldehydes in subcritical water without the addition of catalysts

    Tsunehisa Hirashita, Masaki Ogawa, Reina Hattori, Sota Okochi, Shuki Araki

    Bulletin of the Chemical Society of Japan   88   1760 - 1764   2015.09  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Nickel-catalyzed indium(I)-mediated syn-selective propargylation of aldehydes

    Hirashita, Tsunehisa; Suzuki, Yuuki; Tsuji, Hiromitsu; Sato, Yoshiki; Naito, Kojiro; Araki, Shuki

    European Journal of Organic Chemistry   2012 ( 29 ) 5668 - 5672   2012.09  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Ionic liquid-accelerated allylation of carbonyl compounds with a catalytic amount of indium generated from in situ reduction of InCl3 with aluminium

    Hirashita, Tsunehisa; Sato, Yuki; Yamada, Dai; Takahashi, Fusako; Araki, Shuki

    Chemistry Letters   40   506 - 507   2011.05  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Direct benzylation and allylic alkylation in high-temperature water without added catalysts

    Hirashita, Tsunehisa; Kuwahara, Sho; Okochi, Sota; Tsuji, Makoto; Araki, Shuki

    Tetrahedron Letters   51   1847 - 1851   2010.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Cyclopropanation of Electron-Deficient Alkenes with Activated Dibromomethylene Compounds Mediated by Lithium Iodide or Tetrabutylammonium Salts

    Kawai, Daisuke; Kawasumi, Katsuaki; Miyahara, Tsukasa; Hirashita, Tsunehisa; Araki, Shuki

    Tetrahedron   65   10390 - 10394   2009.04  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Mesoionic carbenes: Reactions of 1,3-diphenyltetrazol-5-ylidene with electron-deficient alkenes, and synthesis and catalytic activities of the (tetrazol-5-ylidene)rhodium(I) complexes.

    Araki, Shuki; Yokoi, Keisaku; Sato, Ryosuke; Hirashita, Tsunehisa; Setsune, Jun-Ichiro.

    Journal of Heterocyclic Chemistry   46   164 - 171   2009.03  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Synthesis of 3-(phenylazo)-1,2,4-triazoles by a nucleophilic reaction of primary amines with 5-chloro-2,3-diphenyltetrazolium salt via mesoionic 2,3-diphenyltetrazolium-5-aminides.

    Araki, Shuki; Hirose, Satoshi; Konishi, Yoshikazu; Nogura, Masatoshi; Hirashita, Tsunehisa.

    Beilstein Journal of Organic Chemistry   2009 ( 5 ) 8 - 8   2009.03  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

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Books

  • Indium compounds.(共著)

    Shuki Araki, Tsunehisa Hirashita (Part: Multiple Authorship )

    Thieme Chemistry  2011.03

  • Indium(III) Iodide.(共著)

    Tsunehisa Hirashita, Shuki Araki (Part: Multiple Authorship )

    John Wiley & Sons  2011.03

  • Indium and Gallium in “Comprehensive Organometallic Chemistry III”.(共著)

    Shuki Araki, Tsunehisa Hirashita (Part: Multiple Authorship )

    Elsevier  2006.12

  • Methyl lithium.(共著)

    Shuki Araki, Tsunehisa Hirashita (Part: Multiple Authorship )

    John Wiley & Sons  2006.04

  • In in Organic Synthesis in “Main Group Metals in Organic Synthesis” .(共著)

    Araki, S. and Hirashita, T. (Part: Multiple Authorship )

    Wiley-VCH  2004.05 ISBN: 9780080456476

  • Indium(I) Iodide (共著)

    Shuki Araki, Tsunehisa Hirashita (Part: Multiple Authorship )

    John Wiley & Sons  2002.10

  • Indium Trichloride.(共著)

    Araki, S. and Hirashita, T. (Part: Multiple Authorship )

    John Wiley & Sons  2002.10

  • Porous Titania Ceramics Prepared by Mimicking Silicified Woods in "Ceramic Processing Science VI".(共著)

    Hirashita, T.; Miyazaki, H.; Takase, H.; Kinoshita , N.; Ota, T. (Part: Multiple Authorship )

    American Ceramic Society  2001.09 ISBN: 978-1574981049

Review Papers

  • "jointly worked

      53   939 - 943   2008.12

    Introduction and explanation (commerce magazine)   Multiple Authorship

Presentations

  • Oxidation of Alcohols with a Novel Nitrosotetrazolium Organocatalys

    Yuta Matsukawa, Tsunehisa Hirashita, Shuki Araki

    IKCOC-13  2015.11  -  2015.11 

  • Photochemical Reaction of Organoindium Tetraphenylporphyrin Complexes

    ○Sachiko Nishihara, Kazuki Sugiyama, Tsunehisa Hirashita, Shuki Araki

    KCOC-12  2012.11  -  2012.11