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Investigation of N-chiral Ligands for development of 3d transition metal catalysts

Research Project

Project/Area Number 20K05493
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 InstitutionChuo University

Principal Investigator

Iwamoto Takahiro  中央大学, 理工学部, 助教 (50735355)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords不斉配位子 / 3d遷移金属触媒 / P-キラル配位子 / 遷移金属触媒 / 3d遷移金属 / 不斉配位
Outline of Research at the Start

本研究では,不斉配位子の構築に活用可能な新しいNキラリティーの誘起法を開発し,それを基にキラルPN配位子の開発を行う。有機化学における主役元素のひとつであり,ありふれた元素である窒素の基本的性質を活用した本戦略により,「3d遷移金属専用キラル配位子」とでも呼べる配位子の創製を目指す。これら配位子の特徴を活かすことで,元素戦略的に重要な3d遷移金属を触媒とする不斉反応の開発を行う。

Outline of Final Research Achievements

Facile synthetic methods for novel P-chiral ligands have been established for development of chiral 3d transition metal catalysts. The newly-developed methods are scalable and allow for introduction of diverse donor sites into P-chiral backbons. Complexation studies using a palladium metal as a model demonstrated that some of the developed P-chiral ligands have unique functions such as ability to generate a N-chirogenic center induced by chiral induction from the inherent P-chirogenic center.

Academic Significance and Societal Importance of the Research Achievements

元素戦略的観点から、従来の貴金属を代替する3d遷移金属触媒の開発が求められているが、医農薬品の創製に必要な不斉合成への展開は限定的である。本研究では、「3d遷移金属触媒専用配位子」とでも呼べる独自の配位子を設計し、それらの合成法を確立するとともに、モデル錯体を用いて配位子の特性の一部を明らかにした。本知見を基に有用3d遷移金属触媒の創製を行うことで、持続可能な有用物質供給基盤の構築に繋がると考えている。

Report

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

    (3 results)

All 2023 2022 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results)

  • [Journal Article] Retro-Vinylidene Rearrangements of P- and S-Substituted Ruthenium Vinylidene Complexes2023

    • Author(s)
      Takahiro Iwamoto, Kyoka Saito, Takuya Mitsubo, Takuya Kuwabara, and Youichi Ishii
    • Journal Title

      Organometallics

      Volume: 42 Issue: 2 Pages: 167-173

    • DOI

      10.1021/acs.organomet.2c00552

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental Observation of β-Carbon Elimination from Alkenylrhodium Complexes through Exchange Reactions of the Alkenyl Unit2022

    • Author(s)
      Takahiro Iwamoto, Koushi Shibuya, Tomoyuki Takakuwa, Takuya Kuwabara, and Youichi Ishii
    • Journal Title

      Organometallics

      Volume: 41 Issue: 3 Pages: 182-186

    • DOI

      10.1021/acs.organomet.1c00695

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of P- and N-Chirogenic Ligands Based on Chiral Induction from a Phosphorus Donor to a Nitrogen Donor in Palladium Complexes2020

    • Author(s)
      Takahiro Iwamoto, Yoshiyuki Mizuhata, Norihiro Tokitoh, Masaharu Nakamura
    • Journal Title

      Organometallics

      Volume: 39 Issue: 10 Pages: 1672-1677

    • DOI

      10.1021/acs.organomet.0c00154

    • Related Report
      2020 Research-status Report
    • Peer Reviewed

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Published: 2020-04-28   Modified: 2024-01-30  

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