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Innovative synthesis for chiral organoboran compounds toward catalyst and medicine

Research Project

Project/Area Number 20K05509
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 InstitutionKanazawa University

Principal Investigator

Soeta Takahiro  金沢大学, 物質化学系, 准教授 (10506819)

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: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords光学活性ボリン酸 / 含窒素複素環カルベン / 触媒的不斉ボリル化 / アミノボロン酸 / イソシアニド / 光学活性ボリン酸触媒 / アミノホウ酸 / ボリン酸触媒 / 触媒的不斉反応 / ホウ素化合物
Outline of Research at the Start

本研究では,「触媒や医薬品を指向した光学活性有機ホウ素化合物の革新的合成」を目的とし,「触媒的不斉反応によるキラルなホウ素化合物の合成およびキラルなホウ素触媒の開発」を目指す。まず,我々が独自に開発したキラルな多点認識型N-ヘテロサイクリックカルベン(NHC)-銅錯体によるイミンへの触媒的不斉ホウ素化反応により,光学活性なアミノボラン誘導体の高効率的合成を行う 。また,安価なアミノ酸を原料とし,NHC触媒―フォトレドックス触媒の協同作用による直接的アミノホウ酸誘導体の合成にも着手する。さらに,キラルなボリン酸誘導体を開発し,エナンチオ選択的反応へ展開する。

Outline of Final Research Achievements

The asymmetric boronation of imines with copper salts and multi-functionalised NHC ligands with pyridine rings has been investigated. The author has developed multi-functionalized NHCs with pyridine rings. They have been applied to various asymmetric reactions. However, triazolium salts with pyridine rings, which are the precursors of multi-functionalised NHCs, have only been used as organocatalysts. We have investigated the use of triazolium salts with pyridine rings as asymmetric ligands in the asymmetric boronation of imines and succeeded in obtaining α-aminoboric acid derivatives with up to 60% ee. It has also been shown that the pyridine ring has a role in the improvement of the stereoselectivity of the product in this reaction.

Academic Significance and Societal Importance of the Research Achievements

NHCを有機触媒として用いた分子変換反応では,極性転換反応に非常に有効であり,21世紀型の環境に優しい有機合成反応開発へ広く展開可能となることから,本研究は非常に意義深いものである。本研究の学術的な独自性は,申請者が開発したキラルな多点認識型NHC触媒を活用した,ホウ素を含有する医薬品や機能性触媒などを指向した触媒的不斉反応の開発である。触媒的不斉反応へ展開して高立体選択的に光学活性体が得られれば,生物活性が見込める各種化合物の新規合成法を開拓でき,その結果合成される一連の物質はそれぞれが医薬品の新規で効率的な合成法になる。

Report

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

    (13 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (7 results) (of which Invited: 1 results)

  • [Journal Article] Molecular Assembly and Gelating Behavior of (L)-Alanine Derivatives.2023

    • Author(s)
      Soeta,T.; Kurobe, S.; Nirei, Y.; Kurokawa, N.; Wei, W.L; Yurtsever, A.; Fukuma, T.; Ukaji, Y
    • Journal Title

      Chemistry A European Journal

      Volume: 25 Issue: 39

    • DOI

      10.1002/chem.202300455

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formal Methylene Insertion into the C?H Bond of <i>α</i>-Carbonyl Aldonitrones with Dimethylsulfoxonium Methylide2022

    • Author(s)
      Sakurai Takanobu、Yano Tohru、Suga Takuya、Soeta Takahiro、Ukaji Yutaka
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 95 Issue: 11 Pages: 1518-1520

    • DOI

      10.1246/bcsj.20220212

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydroxy Group-directed Diastereoselective Patern?-B?chi Reaction between Arylglyoxylates and Furfuryl Alcohols2022

    • Author(s)
      Wei Qi、Ii Hiromi、Suga Takuya、Soeta Takahiro、Maeda Hajime、Ukaji Yutaka
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 12 Pages: 1143-1145

    • DOI

      10.1246/cl.220437

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] N‐Heterocyclic Carbene-Catalyzed Chemoselective Monoacylation of 1,n‐Linear Diols2021

    • Author(s)
      Soeta, T.; Kaneta, K.; Hatanaka, Y.; Ida, T.; Ukaji, Y.
    • Journal Title

      OrganicLetters

      Volume: 23 Issue: 21 Pages: 8138-8142

    • DOI

      10.1021/acs.orglett.1c02749

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of Multi-functional NHC Catalysts bearing Pyridine Moiety: Application to Catalytic Asymmetric Reactions2020

    • Author(s)
      Soeta, T.; Ukaji, Y.
    • Journal Title

      Journal of Synthetic Organic Chemistry, Japan

      Volume: 78 Issue: 4 Pages: 338-349

    • DOI

      10.5059/yukigoseikyokaishi.78.338

    • NAID

      130007829445

    • ISSN
      0037-9980, 1883-6526
    • Year and Date
      2020-04-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of 3,6-Dihydro-2H-1,2-oxazines via Dimethylsulfoxonium Methylide Addition to α,β-Unsaturated Nitrones2020

    • Author(s)
      Hasegawa, M.; Suga, T.; Soeta, T.; Ukaji, Y.
    • Journal Title

      J. Org. Chem.

      Volume: 78 Issue: 17 Pages: 11258-11264

    • DOI

      10.1021/acs.joc.0c01349

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 1,2,4-トリアゾリン-3,5-ジオンを用いた不斉ヘテロDiels-Alder反応の開発2023

    • Author(s)
      請井嵩大, 佐藤 優, 告野熙政, 菅 拓也, 添田貴宏, 宇梶 裕
    • Organizer
      日本化学会第103回春期年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 大野 晴貴, 高橋 良輔, 菅 拓也, 添田 貴宏, 宇梶 裕2023

    • Author(s)
      ジアゾ化合物によるC,N-環状アゾメチンイミンの分子変換反応
    • Organizer
      日本化学会第103回春期年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 位置選択的に 15N ラベル化されたテトラピロール発色団の全合成研究2022

    • Author(s)
      土田竜也, 荒谷英寿, 添田貴宏, 広瀬 侑, 三島正規, 宇梶 裕
    • Organizer
      有機合成化学協会 北陸セミナー
    • Related Report
      2022 Annual Research Report
  • [Presentation] 含窒素複素環カルベン触媒を用いたジオールの化学選択的モノアシル化反応の開発2021

    • Author(s)
      金田光太・畑中雄一・添田貴宏・宇梶裕
    • Organizer
      第50回複素環化学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] ニトロンと硫黄イリドによる新規分子変換反応の開発2021

    • Author(s)
      櫻井 崇敦, 矢野 亮, 菅 拓也, 添田 貴宏, 宇梶 裕
    • Organizer
      第101回日本化学会春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 15E-anti立体固定型フィトクロム発色団の効率的合成2021

    • Author(s)
      白川 樹里、関澤 遼、添田 貴宏、宇梶 裕
    • Organizer
      第101回日本化学会春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Development of New Synthetic Methods Utilizing Carbene Family as Synthons and Catalysts2020

    • Author(s)
      Takahiro Soeta
    • Organizer
      Invited Lecture, ETH Zurich
    • Related Report
      2020 Research-status Report
    • Invited

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

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