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Catalytic Asymmetric Hydrogenation of Heteroarenes

Research Project

Project/Area Number 16H04149
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Synthetic chemistry
Research InstitutionKyushu University

Principal Investigator

Kuwano Ryoichi  九州大学, 理学研究院, 教授 (20273477)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2016: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Keywords触媒的不斉合成 / 水素化 / ルテニウム / イリジウム / 芳香族複素環 / アザインドール / 不斉合成 / 不斉触媒 / 複素環 / 光学活性化合物 / 合成化学 / 有機工業化学 / 触媒・化学プロセス / チアゾール / ピラジン
Outline of Final Research Achievements

We have studied the highly enantioselective hydrogenations of thiazoles, pyrazines, and azaindoles in this project. The hydrogenation of thiazoles with a chiral ruthenium catalyst produces the desired oxazolidines with up to 97% ee, but its yield is very low. Pyrazines were saturated with hydrogen gas through an chiral iridium catalyst to give the piperazines with up to 78% ee. In the hydrogenation of azaindoles, we succeeded in reversing its chemoselectivity by the choice of catalyst. Use of a ruthenium complex as the catalyst allows the reduction to took place on the 5-membered ring to yield the azaindoline products with up to 94% ee. Meanwhile, the exclusive reduction of the 6-membered ring was achieved by using an iridium catalyst and installing benzyl group on the pyridine nitrogen. The chiral iridium catalyst produced the 4,5,6,7-tetrahydroazaindoles with up to 95% ee.

Academic Significance and Societal Importance of the Research Achievements

アルケンやケトンの触媒的不斉水素化は光学活性化合物の供給法として普遍的に利用されている。一方、芳香族複素環の不斉水素化は、反応の進行に脱芳香族化が伴うために困難が予想され、利用可能な基質が限られている。そのため、高エナンチオ選択性が達成されていない芳香族複素環の触媒的不斉水素化を実現することは、有機化学の分野で学術的に極めて意義のある研究課題である。また、この手法によると従来の方法では入手不可能な新規の複素環構造を合成できる。このような構造は生理活性がほどんど評価されておらず、新しい低分子医薬品の候補化合物群としての利用が期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (20 results)

All 2019 2018 2017 2016

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (15 results) (of which Int'l Joint Research: 12 results,  Invited: 6 results)

  • [Journal Article] Ruthenium-Catalyzed Chemo- and Enantioselective Hydrogenation of Isoquinoline Carbocycles2018

    • Author(s)
      Jin Yushu、Makida Yusuke、Uchida Tatsuya、Kuwano Ryoichi
    • Journal Title

      The Journal of Organic Chemistry

      Volume: 83 Issue: 7 Pages: 3829-3839

    • DOI

      10.1021/acs.joc.8b00190

    • Related Report
      2018 Annual Research Report 2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Palladium-Catalyzed Decarboxylation of Benzyl Fluorobenzoates2017

    • Author(s)
      Kuwano Ryoichi、Makida Yusuke、Matsumoto Yasutaka
    • Journal Title

      Synlett

      Volume: 28 Issue: 19 Pages: 2573-2576

    • DOI

      10.1055/s-0036-1588572

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Palladium-catalyzed Benzylic Substitution of Benzyl Carbonates with Phosphorus Nucleophiles2017

    • Author(s)
      Makida Yusuke、Usui Kazumi、Ueno Satoshi、Kuwano Ryoichi
    • Journal Title

      Chemistry Letters

      Volume: 46 Issue: 12 Pages: 1814-1817

    • DOI

      10.1246/cl.170901

    • NAID

      130006243148

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Asymmetric Hydrogenation of Isoxazolium Triflates with a Chiral Iridium Catalyst2016

    • Author(s)
      Rhuhei Ikeda and Rhoichi Kuwano
    • Journal Title

      Chemistry A European Journal

      Volume: 22 Issue: 25 Pages: 8610-8618

    • DOI

      10.1002/chem.201600732

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Asymmetric Hydrogenation of Azaindoles: Chemo‐ and Enantioselective Reduction of Fused Aromatic Ring Systems Consisting of Two Heteroarenes2016

    • Author(s)
      Yusuke Makida, Masahiro Saita, Takahiro Kuramoto, Kentaro Ishizuka, Ryoichi Kuwano
    • Journal Title

      Angew. Chem. Int. Ed.

      Volume: 55 Issue: 39 Pages: 11859-11862

    • DOI

      10.1002/anie.201606083

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] イリジウム触媒によるアザインドールのピリジン環選択的な不斉水素化2019

    • Author(s)
      中山裕棋、槇田祐輔、桑野良一
    • Organizer
      日本化学会 第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Hydrogenation of Heterocyclic and Carbocyclic Arenes with Asymmetric Catalysis2018

    • Author(s)
      桑野良一
    • Organizer
      The International Symposium on Frontiers in Catalytic Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Chemo- and Enantioselective Hydrogenation of Quinoline and Isoquinoline Carbocycles2018

    • Author(s)
      槇田祐輔、金玉樹、池田龍平、桑野良一
    • Organizer
      28th International Conference on Organometallic Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アザインドールの触媒的不斉水素化における化学選択性2018

    • Author(s)
      中山裕棋、槇田祐輔、桑野良一
    • Organizer
      第65回有機金属化学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] アザインドールの触媒的不斉水素化における化学選択性2018

    • Author(s)
      槇田祐輔、中山裕棋、桑野良一
    • Organizer
      第122回触媒討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Switchable Chemoselectivity in Asymmetric Hydrogenation of Azaindoles2018

    • Author(s)
      槇田祐輔、中山裕棋、桑野良一
    • Organizer
      第14回国際有機化学京都会議
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of Chemoselectivity in Enantioselective Hydrogenation of Azaindoles with Chiral Metal Complexes2018

    • Author(s)
      桑野良一
    • Organizer
      13th The International Symposium on Organic Reactions
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Control of Chemoselectivity in Asymmetric Hydrogenation of Fused Heteroarenes2018

    • Author(s)
      桑野良一
    • Organizer
      6th Japan-UK Symposium on Asymmetric Catalysis
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Iridium-Catalyzed Asymmetric Hydrogenation of Pyridine Rings of Azaindoles2018

    • Author(s)
      中山裕棋、槇田祐輔、桑野良一
    • Organizer
      6th Japan-UK Symposium on Asymmetric Catalysis
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enantioselective Hydrogenation of Quinolines and Isoquinoline Carbocycles2018

    • Author(s)
      Ryoichi Kuwano, Yushu Jin, Ryuhei Ikeda, Kazuki Hirasada, Yusuke Makida
    • Organizer
      IRCCS-JST CREST Joint Symposium
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymmetric Hydrogenation of Heteroarenes2017

    • Author(s)
      Ryoichi Kuwano
    • Organizer
      ISPAC 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Enantioselective Hydrogenation of Nitrogen-Containing Heteroarenes2017

    • Author(s)
      Ryoichi Kuwano
    • Organizer
      OMCOS 19
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Chemoselective and Enantioselective Hydrogenation of Quinoline and Isoquinoline Carbocycles2017

    • Author(s)
      Ryoichi Kuwano, Yushu Jin, Ryuhei Ikeda, Kazuki Hirasada, Yusuke Makida
    • Organizer
      ICCEOCA-12 and ARNCEOCA 3
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enantioselective Hydrogenation of Heterocyclic Arenes2016

    • Author(s)
      Ryoichi Kuwano
    • Organizer
      ISPAC 2016
    • Place of Presentation
      マレーシア、クチン
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Chemo- and Enantioselective Hydrogenation of Azaindoles2016

    • Author(s)
      Ryoichi Kuwano, Masahiro Saita, Yusuke Makida
    • Organizer
      C&FC 2016
    • Place of Presentation
      台北、台湾
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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