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Precision Reaction Field Design of Organocatalysts Based on Demand-driven Quantum Chemical Calculations

Research Project

Project/Area Number 22K19018
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 33:Organic chemistry and related fields
Research InstitutionTohoku University

Principal Investigator

Terada Masahiro  東北大学, 理学研究科, 教授 (50217428)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords有機分子触媒 / データ駆動 / デマンド・ドリブン / 量子化学計算 / 不斉反応場
Outline of Research at the Start

有機分子触媒などの不斉触媒を用いた反応開発は多くの場合、研究者の経験と直観による試行錯誤によって高選択性を実現するための最適触媒の構造探索がなされて来た。本研究は最適触媒の合理的な探索法を開発することでこの状況を打開し、高活性かつ高選択的な触媒を理論的に設計することを目的とする。その実現に向け、遷移状態の安定性に関わる「立体歪」と「分子間相互作用」を量子化学計算によって解析し、置換基パラメータ「立体効果・電子効果」との相関を評価データとして最適触媒を探索する。これらの評価データに基づきベイズ最適化法を駆使したデマンド・ドリブン(要求駆動)によって不斉反応場を理論的に精密設計する。

Outline of Final Research Achievements

In recent years, in asymmetric catalytic reactions, it has become clear that the reaction substrate interacts with organocatalysts or asymmetric ligands through "weak interactions mainly due to dispersion forces" such as "C-H... O non-classical hydrogen bonds, C-H... π interaction, and π-stacking, etc." to stabilize the transition state. Since "stabilization of transition states by intermolecular interactions" is an extremely important factor in determining selectivity, we develop a selective catalytic reaction system based on demand-driven, in which the structure "required" for the optimal catalyst of "maximization of intermolecular interactions" is the "driving force". As a demonstration system for this methodology, we examined a reaction system using a chiral phosphate catalyst, in which the representative has a wealth of experience.

Academic Significance and Societal Importance of the Research Achievements

物質の製造時における廃棄物を減らし、欲しい有用物質を選択的に得る、いわゆる環境負荷の軽減を目的とした有機合成手法の開発が急務となっている。こうした社会要請に応えるべく、高機能な触媒の設計開発や新たな戦略に基づく有機合成手法が確立され、多くの有機合成反応の高効率化が図られてきた。研究代表者はこうした高機能触媒の開発のなかでも、医農薬品などの多様化によって需要が高まっている光学活性化合物を効率的かつ選択的に得る不斉触媒反応の開発研究に取り組んできた。本研究は選択的な反応を開発する上で従来の試行錯誤法によらずに、計算科学を活用することで合理的かつ効率的に行う方法論を提供することを目指している。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (8 results)

All 2023 Other

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

  • [Journal Article] Intermolecular exo-selective Diels-Alder reaction catalysed by dual-functional Bronsted acid: conformational restriction of transition states by hydrogen bonds as the key interaction2023

    • Author(s)
      Nakanishi Taishi、Terada Masahiro
    • Journal Title

      RSC Advances

      Volume: 13 Issue: 51 Pages: 36293-36300

    • DOI

      10.1039/d3ra07688a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Computational molecular refinement to enhance enantioselectivity by reinforcing hydrogen bonding interactions in major reaction pathway2023

    • Author(s)
      Nakanishi Taishi、Terada Masahiro
    • Journal Title

      Chemical Science

      Volume: - Issue: 21 Pages: 5712-5721

    • DOI

      10.1039/d3sc01637d

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Chiral Phosphoric Acids as Versatile Enantioselective Catalysts2023

    • Author(s)
      Masahiro Terada
    • Organizer
      The 80th Anniversary International Symposium, The Society of Synthetic Organic Chemistry, Japan
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Stereoselectivity Enhancement/Reversal Based on Computational Prediction: A Case Study of the Diels-Alder Reaction Catalyzed by Dual Functional (Chiral) Bronsted Acid2023

    • Author(s)
      Masahiro Terada
    • Organizer
      Department Seminar in The University of Bologna
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Stereoselectivity Enhancement/Reversal Based on Computational Prediction: A Case Study of the Diels-Alder Reaction Catalyzed by Dual Functional (Chiral) Bronsted Acid2023

    • Author(s)
      Masahiro Terada
    • Organizer
      Department Seminar in Shanghai Jiao Tong University
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of Chiral Bronsted Acid Catalysts and Beyond2023

    • Author(s)
      Masahiro Terada
    • Organizer
      Department Seminar in Xi’an Jiao Tong University
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Remarks] 研究室Webサイトによる紹介

    • URL

      https://orgreact.sakura.ne.jp/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 東北大学・理学研究科・化学専攻Webサイトによる紹介

    • URL

      http://www.chem.tohoku.ac.jp/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

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