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Creation of Pyridylidenes Based on Rearomatization

Research Project

Project/Area Number 21K14607
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Morisako Shogo  筑波大学, 数理物質系, 助教 (70874840)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsカルベン / シリレン / ゲルミレン / 低配位化学種 / 芳香族化合物 / 小分子活性化 / 典型元素 / 分子触媒
Outline of Research at the Start

革新的な分子変換反応の開発は有機化学における恒久的な重要課題であると同時に,その中心的役割を担う遷移金属元素を豊富な有機元素で代替する手法の確立は,持続社会の実現に向けた重要な課題の一つである。本研究課題では,有機分子触媒の酸化還元を経る分子変換反応の開発を見据え,14族低配位化学種の高い結合切断能力に加え,再芳香族化を鍵戦略とする分子変換技術の開発を目的とし,新奇14族低配位化学種の合成と性質解明を目指す。

Outline of Final Research Achievements

Establishment of a method to replace toxic and/or rare transition metal catalysts with abundant elements is one of the important issues to realize a sustainable society. Low-coordinated species of group 14 elements bearing high reactivity and moderate stability are expected to show catalytic activity. In this study, we attempted to create new low-coordinated species of group 14 elements with aromaticity as a stabilizing factor. In the process of constructing the molecular backbone, we developed a method to provide heteroatom-substituted π-electron systems with a Si-H bond activation. We also succeeded in synthesizing and isolating a new germylene with a cyclic π-electron framework, which is different from acyclic germylenes in its electronic structure.

Academic Significance and Societal Importance of the Research Achievements

π電子骨格に組み込まれた低配位14族元素化学種においても,種々の結合を切断できるほどの高い反応性を有していることが明らかとなり,高反応性化学種の新たな分子設計指針の一つとなりえる成果であり,ここに学術的な意義がある。
本研究で開発した,環状π電子骨格含有低配位14族化学種の発生を鍵とするスピロ化合物の合成手法は,従来法では困難であったかさ高い置換基を有するスピロ化合物の合成を可能とし,機能性材料開発への応用が期待される。ここに社会的な意義がある。

Report

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

    (14 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Synthesis of a Dibenzo-1,6,2,5-dioxadisilocine and Its Unexpected Reductive Coupling with Phenanthrene2023

    • Author(s)
      Itoh Narumi、Sugamata Koh、Morisako Shogo、Aoyagi Shinobu、Yorimitsu Hideki、Sasamori Takahiro
    • Journal Title

      Chemistry Letters

      Volume: 52 Issue: 3 Pages: 177-180

    • DOI

      10.1246/cl.220478

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Boron complexes of π-extended nitroxide ligands exhibiting three-state redox processes and near-infrared-II (NIR-II) absorption properties2022

    • Author(s)
      Nakamura Marika、Hyakutake Risa、Morisako Shogo、Sasamori Takahiro、Mizuhata Yoshiyuki、Tokitoh Norihiro、Nakashima Kouichi、Fukumoto Hiroki、Agou Tomohiro
    • Journal Title

      Dalton Transactions

      Volume: 51 Issue: 36 Pages: 13675-13680

    • DOI

      10.1039/d2dt02545k

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Facile Multiple Alkylations of C60 Fullerene2022

    • Author(s)
      Miwa Kazuhira、Aoyagi Shinobu、Sasamori Takahiro、Morisako Shogo、Ueno Hiroshi、Matsuo Yutaka、Yorimitsu Hideki
    • Journal Title

      Molecules

      Volume: 27 Issue: 2 Pages: 450-450

    • DOI

      10.3390/molecules27020450

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synthesis and Structure of a Ferrocenylsilane-Bridged Bisphosphine2022

    • Author(s)
      Sasamori Takahiro、Ueno Hiromu、Morisako Shogo
    • Journal Title

      Inorganics

      Volume: 10 Issue: 2 Pages: 22-22

    • DOI

      10.3390/inorganics10020022

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Facile Synthesis and Redox Behavior of an Overcrowded Spirogermabifluorene2021

    • Author(s)
      Morisako Shogo、Noro Kohsuke、Sasamori Takahiro
    • Journal Title

      Inorganics

      Volume: 9 Issue: 10 Pages: 75-75

    • DOI

      10.3390/inorganics9100075

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ferrocene‐Based Phosphenium Ion with Intramolecular Phosphine Coordination2021

    • Author(s)
      Zhang Tianqing、Lee Vladimir Ya.、Morisako Shogo、Aoyagi Shinobu、Sasamori Takahiro
    • Journal Title

      European Journal of Inorganic Chemistry

      Volume: 2021 Issue: 38 Pages: 3988-3991

    • DOI

      10.1002/ejic.202100615

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] NHCが配位したビフェニレン置換ゲルミレンの合成2023

    • Author(s)
      森迫 祥吾、笹森貴裕
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ビナフタレン置換ゲルミレンの発生2023

    • Author(s)
      金岡優、森迫 祥吾、笹森貴裕
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 5,6-ジヒドロ-6-スタンナフェナントリジン誘導体の合成検討2023

    • Author(s)
      初見諒、森迫 祥吾、笹森貴裕
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 1,2-ジヒドロ-2-スタンナベンゾアゼト誘導体の合成検討2023

    • Author(s)
      加藤莉子、森迫 祥吾、笹森貴裕
    • Organizer
      日本化学会第103春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] GENERATION OF A BIPHENYLENE- SUBSTITUTED GERMYLENE2022

    • Author(s)
      Morisako Shogo、Noro Kohsuke、Sasamori Takahiro
    • Organizer
      29th International Conference on Organometallic Chemistry
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Generation of a tert-butyl substituted 5H-dibenzogermole-5-ylidene derivative2022

    • Author(s)
      Morisako Shogo
    • Organizer
      International Main Group Element Chemistry Seminar
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 1,2-ジヒドロ-1,2-アザシリン誘導体の合成検討2022

    • Author(s)
      初見諒、森迫祥吾、笹森貴裕
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] かさ高い置換基を有するスピロゲルマビフルオレンの合成と酸化還元挙動2021

    • Author(s)
      森迫祥吾、野呂幸佑、笹森貴裕
    • Organizer
      第25回ケイ素化学協会シンポジウム
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2024-01-30  

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