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Elucidation of the Origin of Homochirality of Chiral Organic Compounds by Using Asymmetric Autocatalysis

Research Project

Project/Area Number 19K05482
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 InstitutionWaseda University (2021-2023)
Tokyo University of Science (2019-2020)

Principal Investigator

Soai Kenso  早稲田大学, ナノ・ライフ創新研究機構, その他(招聘研究員) (90147504)

Co-Investigator(Kenkyū-buntansha) 川崎 常臣  東京理科大学, 理学部第一部応用化学科, 教授 (40385513)
朝日 透  早稲田大学, 理工学術院, 教授 (80222595)
Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords不斉自己触媒 / ホモキラリティー / 不斉の起源 / the Soai reaction / 不斉触媒 / 反応有機化学 / キラル結晶 / 不斉認識 / 不斉自己触媒反応 / 硤合反応 / 絶対不斉合成 / キラル対称性の破れ / 自己増殖 / Soai反応 / ジアルキル亜鉛 / 硫酸トリグリシン / 電場 / ピリミジンカルバルデヒド / ピリミジルアルカノール / グリシン / キラリティー
Outline of Research at the Start

生物はL-アミノ酸などに示されるように,像と鏡像の関係にあって重ね合わせることができない一方のキラル化合物のみから成り立っており,その起源は生命の起源にも関連する長年の謎とされている。鏡像体過剰率が増幅する不斉自己触媒反応(硤合反応)を用いてホモキラリティーの起源を解明する。すなわち,絶対不斉合成やキラルでない化合物が形成するキラル結晶を不斉の起源として不斉自己触媒反応と組み合わせてホモキラリティーに至る過程を解明する。

Outline of Final Research Achievements

Living organisms are composed of only one of the enantiomers that cannot be superimposed, such as L-amino acids, which have a relationship of real and mirror images (homochirality). The elucidation of their origin and process is a mystery in the chemical evolution leading to the origin of life. Aiming to elucidate the origin of homochirality, we found that by conducting the Soai reaction, an asymmetric autocatalytic reaction that amplifies the enantiomeric excess, in the presence of chiral crystals formed by achiral compounds such as glycine and 2-pyridone, these could effectively act as the origin of homochirality. Furthermore, absolute asymmetric synthesis was achieved under solid-gas conditions without any chiral factors. The results of this study deepen our understanding of the process of establishing homochirality.

Academic Significance and Societal Importance of the Research Achievements

生命はL-アミノ酸を用いており,D型との混合物では生命は成り立たない。生命の起源の解明には,分子のホモキラリティーが成立した化学進化の過程解明が不可欠である。本研究成果は不斉自己触媒反応でホモキラリティー成立の過程を実現したものである。不斉起源とは考えられていなかったグリシンのガンマ結晶存在下,不斉自己触媒(Soai)反応によりホモキラリティーに到達すること,さらに不斉要因無しで絶対不斉合成を実現し,長年の有機化学の常識を覆した。キラル有機化合物がホモキラリティーに至った化学過程が明らかでなかったのに対し,明確な化学過程により可能であることを実証しホモキラリティーに対する認識をより深めた。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (28 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 5 results,  Invited: 5 results) Book (9 results) Remarks (2 results)

  • [Int'l Joint Research] Weizmann Institute of Science(イスラエル)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Asymmetric Autocatalysis with Amplification of Enantiomeric Excess utilizing Chiral Crystals of Achiral o-Terphenyls as Chiral Triggers.2024

    • Author(s)
      Kawasaki Tsuneomi, Tateishi Daisuke, Matsumoto Arimasa, Soai Kenso
    • Journal Title

      Tetrahedron

      Volume: 152 Pages: 133835-133835

    • DOI

      10.1016/j.tet.2024.133835

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Achiral 2‐pyridone and 4‐aminopyridine act as chiral inducers of asymmetric autocatalysis with amplification of enantiomeric excess via the formation of chiral crystals2023

    • Author(s)
      Matsumoto Arimasa、Tateishi Daisuke、Nakajima Tsuyoshi、Kurosaki Shiori、Ogawa Tomohiro、Kawasaki Tsuneomi、Soai Kenso
    • Journal Title

      Chirality

      Volume: 36 Issue: 1 Pages: 23617-23617

    • DOI

      10.1002/chir.23617

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Asymmetric Autocatalysis as an Efficient Link Between the Origin of Homochirality and Highly Enantioenriched Compounds2022

    • Author(s)
      Soai Kenso、Kawasaki Tsuneomi、Matsumoto Arimasa
    • Journal Title

      Origins of Life and Evolution of Biospheres

      Volume: 52 Issue: 1-3 Pages: 57-74

    • DOI

      10.1007/s11084-022-09626-7

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Soai reaction and its implications with the life's characteristic features of self-replication and homochirality2022

    • Author(s)
      Soai Kenso
    • Journal Title

      Tetrahedron

      Volume: 124 Pages: 133017-133017

    • DOI

      10.1016/j.tet.2022.133017

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] キラリティの基礎および生命のホモキラリティの意義と起源2022

    • Author(s)
      そ合憲三,川崎常臣
    • Journal Title

      化学と教育

      Volume: 70 Pages: 254-257

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymmetric autocatalysis triggered by triglycine sulfate with switchable chirality by altering the direction of the applied electric field2021

    • Author(s)
      Kawasaki Tsuneomi、Kaimori Yoshiyasu、Shimada Seiya、Hara Natsuki、Sato Susumu、Suzuki Kenta、Asahi Toru、Matsumoto Arimasa、Soai Kenso
    • Journal Title

      Chemical Communications

      Volume: 57 Issue: 49 Pages: 5999-6002

    • DOI

      10.1039/d1cc02162a

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Asymmetric Autocatalysis as a Link Between Crystal Chirality and Highly Enantioenriched Organic Compounds2021

    • Author(s)
      Soai Kenso、Matsumoto Arimasa、Kawasaki Tsuneomi
    • Journal Title

      Israel Journal of Chemistry

      Volume: 61 Issue: 9-10 Pages: 507-516

    • DOI

      10.1002/ijch.202100047

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Circular dichroism spectroscopy of catalyst preequilibrium in asymmetric autocatalysis of pyrimidyl alkanol2021

    • Author(s)
      Matsumoto Arimasa、Tanaka Ayame、Kaimori Yoshiyasu、Hara Natsuki、Mikata Yuji、Soai Kenso
    • Journal Title

      Chemical Communications

      Volume: 57 Issue: 85 Pages: 11209-11212

    • DOI

      10.1039/d1cc04206h

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of Asymmetric Autocatalysis in the Elucidation of Origins of Homochirality of Organic Compounds2019

    • Author(s)
      Kenso Soai, Tsuneomi Kawasaki, Arimasa Matsumoto
    • Journal Title

      Symmetry

      Volume: 11 Issue: 5 Pages: 694-694

    • DOI

      10.3390/sym11050694

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Discovery of Asymmetric Autocatalysis and the Study on the Origin of Homochirality2024

    • Author(s)
      そ合憲三
    • Organizer
      有機合成化学協会 高砂香料国際賞「野依賞」受賞記念講演
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] キラルなピリジン誘導体が形成するキラル結晶を不斉源とする高エナンチオ選択的不斉自己触媒反応2023

    • Author(s)
      立石大祐,小川智央,黒崎しおり,中嶋剛志,そ合憲三,川崎常臣
    • Organizer
      モレキュラー キラリティー 2023 札幌
    • Related Report
      2023 Annual Research Report
  • [Presentation] Chiral Crystal of Achiral Hydrocarbon, o-Terphenyl Induced Asymmetric Autocatalysis2022

    • Author(s)
      Daisuke Tateishi, Tomohiro Ogawa, Kento Yonemitsu, Kenso Soai, Tsuneomi Kawasaki
    • Organizer
      Molecular Chirality Asia 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Asymmetric Autocatalysis and the Elucidation of the Origin of Homochirality2021

    • Author(s)
      Kenso Soai
    • Organizer
      Chiral Matter, Nobel Symposium 167
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymmetric Autocatalysis and the Origin of Homochirality2020

    • Author(s)
      Kenso Soai
    • Organizer
      Symposium on Molecular Chirality Asia 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymmetric Autocatalysis and the Origin of Homochirality2019

    • Author(s)
      Kenso Soai
    • Organizer
      Symposium Chirality at the Nanoscale
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Asymmetric Autocatalysis and the Origin of Homochirality2019

    • Author(s)
      Kenso Soai
    • Organizer
      Seminar at The Federal Institute of Technology (ETH, Zurich)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 生命起源の事典2024

    • Author(s)
      川崎常臣,そ合憲三
    • Total Pages
      2
    • Publisher
      朝倉書店
    • ISBN
      9784254160789
    • Related Report
      2023 Annual Research Report
  • [Book] Asymmetric Autocatalysis and the Origins of Homochirality in "Guidebook for Systems Applications in Astrobiology"2023

    • Author(s)
      Kenso Soai, Tsuneomi Kawasaki, Arimasa Matsumoto
    • Total Pages
      25
    • Publisher
      CRC Press
    • ISBN
      9781032278216
    • Related Report
      2023 Annual Research Report
  • [Book] Asymmetric Autocatalysis and the Elucidation of the Origin of Homochirality, in “Chiral Matter: Proceedings of the Nobel Symposium 167,” Chap. 11, pp. 141-160, Eds. M. Larsson, E. Babaev, D. Kharzeev2023

    • Author(s)
      Kenso Soai
    • Total Pages
      266
    • Publisher
      World Scientific
    • ISBN
      9789811265051
    • Related Report
      2022 Research-status Report
  • [Book] Asymmetric Autocatalysis: The Soai Reaction. An Overview, in “Asymmetric Autocatalysis: The Soai Reaction,” Chap. 1, pp. 1-32, Eds. K. Soai, T Kawasaki, A. Matsumoto2022

    • Author(s)
      Kenso Soai, Tsuneomi Kawasaki, Arimasa Matsumoto
    • Total Pages
      349
    • Publisher
      Royal Society of Chemistry
    • ISBN
      9781839166273
    • Related Report
      2022 Research-status Report
  • [Book] Asymmetric Autocatalysis Initiated by Enantioenriched Chiral Organic Compounds: The Link between Circularly Polarized Light and Nearly Enantiopure Organic Compounds, in “Asymmetric Autocatalysis: The Soai Reaction,” Chap. 2, pp. 33-42, Eds. K. Soai, T Kawasaki, A. Matsumoto2022

    • Author(s)
      Tsuneomi Kawasaki, Arimasa Matsumoto, Kenso Soai
    • Total Pages
      349
    • Publisher
      Royal Society of Chemistry
    • ISBN
      9781839166273
    • Related Report
      2022 Research-status Report
  • [Book] Asymmetric Autocatalysis Triggered by Chirality of Minerals, Organic Crystals and Surfaces, in “Asymmetric Autocatalysis: The Soai Reaction,” Chap. 3, pp. 43-64, Eds. K. Soai, T Kawasaki, A. Matsumoto,2022

    • Author(s)
      Arimasa Matsumoto, Tsuneomi Kawasaki, Kenso Soai
    • Total Pages
      349
    • Publisher
      Royal Society of Chemistry
    • ISBN
      9781839166273
    • Related Report
      2022 Research-status Report
  • [Book] Absolute Asymmetric Synthesis in The Soai Reaction, in “Asymmetric Autocatalysis: The Soai Reaction,” Chap. 4, pp. 65-74, Eds. K. Soai, T Kawasaki, A. Matsumoto2022

    • Author(s)
      Kenso Soai, Tsuneomi Kawasaki, Arimasa Matsumoto
    • Total Pages
      349
    • Publisher
      Royal Society of Chemistry
    • ISBN
      9781839166273
    • Related Report
      2022 Research-status Report
  • [Book] Structure Analysis of Asymmetric Autocatalysis by X-ray Crystallography and Circular Dichroism Spectroscopy, in “Asymmetric Autocatalysis: The Soai Reaction,” Chap. 12, pp. 273-288, Eds. K. Soai, T Kawasaki, A. Matsumoto2022

    • Author(s)
      Arimasa Matsumoto, Tsuneomi Kawasaki, Kenso Soai
    • Total Pages
      349
    • Publisher
      Royal Society of Chemistry
    • ISBN
      9781839166273
    • Related Report
      2022 Research-status Report
  • [Book] Unusual Aspects of Asymmetric Induction and Amplification Observed in the Soai Reaction, in “Asymmetric Autocatalysis: The Soai Reaction,” Chap. 14, pp. 317-338, Eds. K. Soai, T Kawasaki, A. Matsumoto2022

    • Author(s)
      Tsuneomi Kawasaki, Arimasa Matsumoto, Kenso Soai
    • Total Pages
      349
    • Publisher
      Royal Society of Chemistry
    • ISBN
      9781839166273
    • Related Report
      2022 Research-status Report
  • [Remarks] The Soai Research Group

    • URL

      http://www.rs.kagu.tus.ac.jp/soai/

    • Related Report
      2023 Annual Research Report
  • [Remarks] The Soai Research Group

    • URL

      https://www.rs.kagu.tus.ac.jp/soai/

    • Related Report
      2022 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

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