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Exploration of Diazo-Free Generation of Metal Carbenes and Its Applications in Catalysis

Research Project

Project/Area Number 19K15565
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 33020:Synthetic organic chemistry-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Asako Sobi  国立研究開発法人理化学研究所, 環境資源科学研究センター, 上級研究員 (80737289)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsモリブデン / ルテニウム / カルボニル化合物 / シクロプロパン / 脱酸素 / カルベン / 炭素-水素結合切断 / 炭素-炭素結合切断
Outline of Research at the Start

ジアゾ化合物は有機合成において有用な活性種であるカルベンを発生させるためによく用いられる前駆体である.しかしながら,ジアゾ化合物のもつ潜在的な爆発性や毒性のため,安定すなわち不活性な化合物をジアゾ代替とする反応の開発が望まれている.本研究では不活性結合の二重切断により生成する金属カルベン種を基盤とする全く新しい物質変換反応開発を目指す.

Outline of Final Research Achievements

Despite the widespread use of diazo compounds as convenient precursors of carbene species in organic synthesis, their inherent explosive and toxic nature often limits synthetic applications, resulting in much attention to the identification of stable and safe surrogates. We found that the metal/quinone species, readily prepared from commercially available and easy-to-handle M(0) complex and quinone, enables the use of carbonyl compounds and cyclopropanes as unconventional stable carbene precursors through deoxygenation and retro-cyclopropanation, respectively.

Academic Significance and Societal Importance of the Research Achievements

有機合成化学において一般にカルボニル化合物は求電子剤として利用され、C=O二重結合のうちより弱いπ結合のみが切断される。シクロプロパンもC3ユニッとしての合成利用が大多数を占め、C-C単結合は1本のみ切断される。それに対し本研究では、これらの化合物を常識と異なるC1カルベン源として利用することに成功した。不活性結合の二重切断という未開拓分野を切り拓いた点で基礎科学的に重要であり、爆発性や毒性をもつジアゾ化合物を入手容易な安定化合物で代替する点で意義深い。

Report

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

    (16 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Book (1 results) Remarks (4 results)

  • [Journal Article] Molybdenum-Quinone-Catalyzed Deoxygenative Coupling of Aromatic Carbonyl Compounds2022

    • Author(s)
      Banerjee Somsuvra、Kobayashi Takafumi、Takai Kazuhiko、Asako Sobi、Ilies Laurean
    • Journal Title

      Organic Letters

      Volume: 24 Issue: 39 Pages: 7242-7246

    • DOI

      10.1021/acs.orglett.2c03143

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molybdenum‐Catalyzed Deoxygenative Cyclization of Carbonyl Compounds for the Synthesis of Pyrido[2,1‐a]isoindoles2021

    • Author(s)
      Asako Sobi、Kobayashi Takafumi、Ishihara Seina、Takai Kazuhiko
    • Journal Title

      Asian Journal of Organic Chemistry

      Volume: 10 Issue: 4 Pages: 753-756

    • DOI

      10.1002/ajoc.202100038

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Olefin Synthesis by Deoxygenative Coupling of Carbonyl Compounds: From Stoichiometric to Catalytic2020

    • Author(s)
      Asako Sobi、Ilies Laurean
    • Journal Title

      Chemistry Letters

      Volume: 49 Issue: 11 Pages: 1386-1393

    • DOI

      10.1246/cl.200540

    • NAID

      130007936944

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deoxygenative Insertion of Carbonyl Carbon into a C(sp3)-H Bond: Synthesis of Indolines and Indoles2019

    • Author(s)
      Asako Sobi、Ishihara Seina、Hirata Keiya、Takai Kazuhiko
    • Journal Title

      Journal of the American Chemical Society

      Volume: 141 Issue: 25 Pages: 9832-9836

    • DOI

      10.1021/jacs.9b05428

    • NAID

      120006859680

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 豊富資源・安定化合物を利用する有機合成2023

    • Author(s)
      浅子壮美
    • Organizer
      令和4年度第2回有機金属若手研究者の会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 有機ナトリウム化学の開拓と不活性結合の二重切断反応および選択的切断反応の開発2023

    • Author(s)
      浅子壮美
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Molybdenum-Catalyzed Deoxygenative Coupling of Carbonyl Compounds for Synthesis of Olefins2022

    • Author(s)
      Somsuvra Banerjee, Takafumi Kobayashi, Kazuhiko Takai, Sobi Asako, Laurean Ilies
    • Organizer
      68th Symposium on Organometallic Chemistry, Japan
    • Related Report
      2022 Annual Research Report
  • [Presentation] 豊富・安定化合物の新しい使い道2021

    • Author(s)
      浅子壮美
    • Organizer
      日本プロセス化学会2021ウィンターシンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Carbonyl compounds and cyclopropanes as diazo surrogates: molybdenum-catalyzed two-fold cleavage of strong bonds2021

    • Author(s)
      Sobi Asako, Kazuhiko Takai
    • Organizer
      The International Chemical Congress of Pacific Basin Societies 2021 (Pacifichem 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Exploration of Organic Synthesis Using Abundant and Stable Compounds2020

    • Author(s)
      Sobi Asako
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Directed Retro-Cyclopropanation with Metal-Quinone Complexes2019

    • Author(s)
      Sobi Asako, Takaaki Kobashi, Kazuhiko Takai
    • Organizer
      the 23rd International Symposium on Olefin Metathesis and Related Chemistry (ISOM XXIII)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] C-H結合活性化反応2019

    • Author(s)
      日本化学会、イリエシュ ラウレアン、浅子 壮美、吉田 拓未
    • Total Pages
      128
    • Publisher
      共立出版
    • ISBN
      9784320044753
    • Related Report
      2019 Research-status Report
  • [Remarks]

    • URL

      http://iliesteam.riken.jp/home_JP.html

    • Related Report
      2022 Annual Research Report
  • [Remarks]

    • URL

      http://achem.okayama-u.ac.jp/omc/

    • Related Report
      2022 Annual Research Report
  • [Remarks]

    • URL

      http://iliesteam.riken.jp/home_JP.html

    • Related Report
      2020 Research-status Report
  • [Remarks]

    • URL

      http://iliesteam.riken.jp/home_JP.html

    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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