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Efficient synthesis of three consecutive chiral building blocks having amino and hydroxy groups

Research Project

Project/Area Number 21K05055
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 33020:Synthetic organic chemistry-related
Research InstitutionKobe University

Principal Investigator

Hayashi Masahiko  神戸大学, 理学研究科, 教授 (60192704)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsメソ化合物 / エポキシド / アジリジン / 不斉中心炭素 / 光学純度 / アリル位酸化 / キラル配位子 / キラルビルディングブロック / 立体化学 / 触媒的不斉合成 / 天然物合成
Outline of Research at the Start

天然物や医薬品には連続した不斉中心をもつものが多い。そこで一回の反応で複数の連続する不斉中心炭素を構築する手法が開発できれば光学活性化合物の合成において有効な手段となる。本研究では二重結合をもつメソ型アジリジンを基質に用いて触媒的不斉アリル位酸化反応を行い、一回の反応で三連続不斉中心炭素を構築する。具体的には、アリル位酸化反応の他、触媒的不斉アリル位アミド化反応も行う。その後、水もしくはアジ化ナトリウムで位置および立体選択的に環開裂反応を行う。その結果、連続した三つの不斉炭素の望む位置にアミノ基とヒドロキシ基の個数と立体化学を完全に制御したキラルビルディングブロックの効率のよい合成を実現する。

Outline of Final Research Achievements

I have conducted research for three years on the project "Efficient Synthesis of Chiral Building Blocks with Three Consecutive Amino and Hydroxy Groups". Many natural substances and pharmaceuticals possess consecutive chiral centers. Thus, developing a method to construct multiple consecutive chiral carbon centers in a single reaction would be an effective approach for the synthesis of optically active compounds. In this study, we used meso-aziridines with double bonds as substrates to perform catalytic asymmetric allylic oxidation reactions, with the aim of constructing three consecutive chiral carbon centers in one reaction. As a result, we were able to establish a method for efficiently synthesizing chiral building blocks, perfectly controlling the number and stereochemistry of amino and hydroxy groups at the desired positions of three consecutive chiral carbons.

Academic Significance and Societal Importance of the Research Achievements

天然物や医薬品には連続した不斉中心をもつものが多い。そこで一回の反応で複数の連続する不斉中心炭素を構築する手法が開発できれば光学活性化合物の合成において有効な手段となる。本研究では二重結合をもつメソ型アジリジンを基質に用いて触媒的不斉アリル位酸化反応を行い、一回の反応で三連続不斉中心炭素を構築することを目的として研究を行った。その結果、連続した三つの不斉炭素の望む位置にアミノ基とヒドロキシ基の個数と立体化学を完全に制御したキラルビルディングブロックを効率よく合成する方法を確立することができた。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2021

All Journal Article (8 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (5 results)

  • [Journal Article] One-pot synthesis of 3-substiuted indoles from 2-(2-nitro-1-phenylethyl)cyclohexanone derivatives2023

    • Author(s)
      Y. Kuang, K. Maeda, R. Matsubara, M. Hayashi
    • Journal Title

      J. Org. Chem.

      Volume: 88 Issue: 9 Pages: 5791-5800

    • DOI

      10.1021/acs.joc.3c00233

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sensitizer-free photochemical regeneration of benzimidazoline organohydride2023

    • Author(s)
      R. Matsubara, T. Harada, W. Xie, T. Yabuta, J. Xu, M. Hayashi
    • Journal Title

      J. Org. Chem.

      Volume: 88 Issue: 17 Pages: 12276-2288

    • DOI

      10.1021/acs.joc.3c00898

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Photophysical and electrochemical properties of 9-naphthyl-3,6-diaminocarbazole derivatives and their application as photosensitizers2023

    • Author(s)
      R. Matsubara, H. Kuang, T. Yabuta, W. Xie, M. Hayashi, E. Sakuda
    • Journal Title

      J. Photochem. Photobiol.

      Volume: 15 Pages: 100176-100176

    • DOI

      10.1016/j.jpap.2023.100176

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Metal-free reduction of CO2 to formate using a photochemical organohydride-catalyst recycling strategy2023

    • Author(s)
      Xie Weibin、Xu Jiasheng、Md Idros Ubaidah、Katsuhira Jouji、Fuki Masaaki、Hayashi Masahiko、Yamanaka Masahiro、Kobori Yasuhiro、Matsubara Ryosuke
    • Journal Title

      Nature Chemistry

      Volume: - Issue: 6 Pages: 794-802

    • DOI

      10.1038/s41557-023-01157-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Diboration of alkynes accelerated by synergistic effects of ruthenium complexes and phenoxides2022

    • Author(s)
      S. Murakami, R. Matsubara, M. Hayashi
    • Journal Title

      Eur. J. Org. Chem

      Volume: 2022 Issue: 44

    • DOI

      10.1002/ejoc.202200905

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Direct arylation of furoxan using potassium aryltrifluoroborates2022

    • Author(s)
      C. Dong, M. Hayashi, R. Matsubara
    • Journal Title

      Heterocycles

      Volume: 104 Issue: 10 Pages: 1770-1781

    • DOI

      10.3987/com-22-14720

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Regiodivergent Desymmetrization Reaction of meso-Azabicycloheptene Providing Rwo Enantioenriched Structural Isomers2021

    • Author(s)
      Yuxin Zheng, Yanze Huang, Peng Gao, Hongyan Liu, Ryosuke Matsubara, Masahiko Hayashi
    • Journal Title

      Organic Letters

      Volume: 23 Issue: 7 Pages: 2411-2414

    • DOI

      10.1021/acs.orglett.1c00036

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Substituted Anilines from Cyclohexanones Using Pd/C-Ethylene System and Its Applocation to Indole Synthesis2021

    • Author(s)
      Katsumi Maeda, Ryosuke Matsubara, Masahiko Hayashi
    • Journal Title

      Organic Letters

      Volume: 23 Issue: 5 Pages: 1530-1534

    • DOI

      10.1021/acs.orglett.0c04056

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Syntheses of Boraindene Derivatives2023

    • Author(s)
      Suguru Murakami, Ryosuke Matsubara, Masahiko Hayashi
    • Organizer
      第69回有機金属化学討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 炭酸セシウムにより活性化されたカルバゾール光増感剤を用いたアルキルアリールエーテルのC-O結合の光還元的切断反応v2023

    • Author(s)
      薮田 達志,林 昌彦,松原 亮介
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] アニオン性置換基を有するカルバゾール光増感剤の合成、物性評価、光反応への応用2023

    • Author(s)
      宮本 陸人,薮田 達志,林 昌彦,松原 亮介
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Pd/C-エチレン系を用いた置換インドールの新規合成法2022

    • Author(s)
      匡 陽金・前田勝海・松原亮介・林 昌彦
    • Organizer
      第51回複素環化学討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ルテニウム触媒を用いたアルキンのジホウ素化反応2022

    • Author(s)
      村上賢・松原亮介・林 昌彦
    • Organizer
      日本化学会春季年会
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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