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Construction of Tetrahedral Chiral-at-Metal Complexes with Achiral Ligands

Research Project

Project/Area Number 18K05138
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34010:Inorganic/coordination chemistry-related
Research InstitutionThe University of Tokyo

Principal Investigator

Ube Hitoshi  東京大学, 大学院理学系研究科(理学部), 助教 (00512138)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsChiral-at-metal / 不斉金属中心 / 四面体型錯体 / ニッケル錯体 / コバルト錯体 / 亜鉛錯体 / 光学分割 / キラル@金属錯体 / 不斉合成 / 不斉誘導 / Chiral-at-metal 錯体 / 自然分晶 / 金属中心キラリティ / 不斉金属錯体 / Chiral-at-Metal錯体 / 金属錯体 / 金属不斉中心 / 非対称化 / 不斉触媒 / 四面体型金属錯体 / キラル錯体 / 亜鉛
Outline of Final Research Achievements

In this study, I focused on the construction and functionalization of tetrahedral chiral-at-metal complexes which have chirality at the metal center. During the period, the racemic syntheses of tetrahedral chiral-at-zinc(II), -nickel(II) and -cobalt(II) complexes were succeeded. Asymmetric synthesis of a chiral-at-zinc(II) complex was achieved by using a chiral auxiliary method. Temperature-dependent optical resolution of nickel(II) was observed to obtain optical pure crystals of the complex. Also, I found carbon-carbon bond cleavage reactions in the presence of stoichiometric amounts of the cobalt(II) complex. Furthermore, Substituent effect on achiral, tridentate ligands in chiral-at-zinc(II) complexes are examined, and important factors for stability of stereogenic centers of tetrahedral complexes are clarified.

Academic Significance and Societal Importance of the Research Achievements

キラル化学の推進のためにはキラル中心となりうる元素の拡充が求められる。炭素をはじめとし硫黄やリンなどの典型元素をキラル中心とする化学は多くの成果が報告されている一方、動的な性質を示す傾向にある金属元素を不斉中心とするChiral-at-Metal化合物の創生は発展の余地が多分に残されている。これまでChiral-at-Metal化合物の合成では、六配位の金属錯体のような、限られた範囲の化合物に焦点が当てられてきた。キラリティの発現において合成方法やキラリティの安定性、生じたキラル化合物の光学的特性や反応性、触媒能といった緒性質を明らかとすることは学術的に意義深い。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020 2019 Other

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results) Remarks (3 results)

  • [Journal Article] 驚異的安定性をもつ四面体型「不斉亜鉛」錯体 -キラル金属錯体の化学に新たな道を拓く2021

    • Author(s)
      遠藤健一、劉鳶飛、 宇部仁士、 長田浩一、塩谷光彦
    • Journal Title

      化学

      Volume: 76 Pages: 25-28

    • NAID

      40022589334

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymmetric construction of tetrahedral chiral zinc with high configurational stability and catalytic activity2020

    • Author(s)
      Endo Kenichi、Liu Yuanfei、Ube Hitoshi、Nagata Koichi、Shionoya Mitsuhiko
    • Journal Title

      Nature Communications

      Volume: 11 Issue: 1 Pages: 6263-6263

    • DOI

      10.1038/s41467-020-20074-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Tetrahedral Chiral-at-Metal Catalysts with Only Achiral Ligands2023

    • Author(s)
      Yuanfei Liu, Hitoshi Ube, Mitsuhiko Shionoya
    • Organizer
      the 14th HOPE meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical Resolution of a Tetrahedral Chiral-at-Nickel(II) Complex with Only Achiral Ligands2022

    • Author(s)
      Yuanfei Liu, Hitoshi Ube, Mitsuhiko Shionoya
    • Organizer
      The 8th Asian Conference on Coordination Chemistry
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enantioselective Synthesis of a Tetrahedral Chiral-at-Zinc Complex with High Configurational Stability2021

    • Author(s)
      Kenichi Endo, Yuanfei Liu, Hitoshi Ube, Koichi Nagata, Mitsuhiko Shionoya
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Yuanfei Liu, Kenichi Endo, Hitoshi Ube, Koichi Nagata, Mitsuhiko Shionoya2021

    • Author(s)
      Asymmetric Oxa-Diels-Alder Reaction Catalyzed by a Tetrahedral Chiral-at-Zinc Complex with Only Achiral Ligands
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Construction of Redox-Active Tetrahedral Chiral-at-Metal(II) Complexes with an Achiral Unsymmetric Tridentate Ligand2021

    • Author(s)
      Yuanfei Liu, Hitoshi Ube, Mitsuhiko Shionoya
    • Organizer
      錯体化学会第71回討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Synthesis of a Werner-type Tetrahedral Chiral-at-Cobalt(II) Complex with an Achiral Unsymmetric Tridentate Ligand2021

    • Author(s)
      Yuanfei Liu, Hitoshi Ube, Mitsuhiko Shionoya
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Enantioselective construction of a tetrahedral Zn<sup>II</sup>ABCD center with a stable chirality sense and a catalytically active coordination site2020

    • Author(s)
      ENDO, Kenichi; LIU, Yuanfei; UBE, Hitoshi; NAGATA, Koichi; SHIONOYA, Mitsuhiko
    • Organizer
      日本化学会第100回春季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Asymmetric Oxa-Diels-Alder Reaction Catalyzed by a Tetrahedral Chiral-at-Zinc Complex with a Tridentate Achiral Ligand2020

    • Author(s)
      LIU, Yuanfei; ENDO, Kenichi; UBE, Hitoshi; NAGATA, Koichi; SHIONOYA, Mitsuhiko
    • Organizer
      日本化学会第100回春季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Asymmetric Induction on a Chiral Tetrahedral Zinc Complex Composed of Achiral Ligands and its Application to Enantioselective Catalysis2019

    • Author(s)
      Kenichi Endo, Yuanfei Liu, Hitoshi Ube, Mitsuhiko Shionoya
    • Organizer
      錯体化学会 第69回討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Asymmetric Hetero-Diels-Alder Reaction Catalyzed by Stereochemically Stable, Tetrahedral Chiral-Only-at-Metal Zinc Complexes2019

    • Author(s)
      Yuanfei Liu, Kenichi Endo, Hitoshi Ube, Mitsuhiko Shionoya
    • Organizer
      錯体化学会 第69回討論会
    • Related Report
      2019 Research-status Report
  • [Remarks] 東京大学大学院理学系研究科化学専攻生物無機化学研究室Webサイト

    • URL

      http://www.chem.s.u-tokyo.ac.jp/~bioinorg/index.html

    • Related Report
      2021 Research-status Report
  • [Remarks] 東京大学生物無機化学研究室website

    • URL

      http://www.chem.s.u-tokyo.ac.jp/~bioinorg/

    • Related Report
      2020 Research-status Report
  • [Remarks] 東京大学生物無機化学研究室website

    • URL

      http://www.chem.s.u-tokyo.ac.jp/~bioinorg/index.html

    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2025-03-27  

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