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Development of a new synthetic method for multisubstituted tetrahydrofuran rings based on skeletal transformation of natural molecules

Research Project

Project/Area Number 19K05839
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38040:Bioorganic chemistry-related
Research InstitutionTohoku University

Principal Investigator

Mori Naoki  東北大学, 理学研究科, 講師 (60463882)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsセサミン / リグナン / テトラヒドロフラン環 / zanthiplanispine / Baeyer-Villiger酸化 / zanthplanispine / Baeyer-Villiger転位 / 脱水素反応 / ラジカルカップリング
Outline of Research at the Start

多置換テトラヒドロフラン環の立体制御合成は有機合成における重要な課題である。本研究では、天然由来分子であるセサミンを合成素子として用い、ベンジル位におけるBaeyer-Villiger転位、脱水素反応、ラジカルカップリングなどの特異な反応を利用することで、リグナンやアセトゲニンなどの天然物中に見られる多置換テトラヒドロフラン環の新規立体制御合成法を開発する。

Outline of Final Research Achievements

Using sesamin, a naturally available furofuran lignan, as a synthetic element, we aimed to develop stereoselective synthesis of multisubstituted tetrahydrofuran rings and to synthesize zanthiplanispine by finding a new chemical transformation focusing on the reactivity at the benzylic position. Although the Baeyer-Villiger-type rearrangement with controlling selectivity of the rearrangement group at the benzylic position and the dehydrogenation reaction at the benzylic position proved difficult to achieve, the lactone obtained by MeReO3 oxidation was suggested to be an important intermediate that could lead to the synthesis of other lignans.

Academic Significance and Societal Importance of the Research Achievements

テトラヒドロフラン環はリグナン、アセトゲニン、イオノフォアポリエーテル、マクロジオライドなど数多くの天然有機化合物中に見られる基本構造であるため、多置換テトラヒドロフラン環の立体制御合成は天然物合成における重要な課題である。本研究では、天然由来のフロフランリグナンであるセサミンを合成素子として利用し、ベンジル位の反応性に着目した新たな多置換テトラヒドロフラン環の立体選択的合成法の開発と種々のリグナン類の合成を目指した。MeReO3酸化により得られるラクトンは他のリグナン類の合成に繋がる重要中間体となりうる可能性が示唆された。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (10 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (7 results) (of which Invited: 1 results)

  • [Journal Article] Studies toward the enantioselective synthesis of neurymenolide A: Construction of the macrocyclic core via Claisen rearrangement2020

    • Author(s)
      M. Masuda, N. Sakurai, Y. Ogura, T. Murase, T. Kawasaki, S. Aiba, N. Mori, H. Watanabe, H. Takikawa
    • Journal Title

      Tetrahedron Letters

      Volume: 61 Issue: 18 Pages: 151825-151825

    • DOI

      10.1016/j.tetlet.2020.151825

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formal Synthesis of Pseudolaric Acid B2020

    • Author(s)
      N. Mori
    • Journal Title

      Synlett

      Volume: 31 Issue: 09 Pages: 907-910

    • DOI

      10.1055/s-0039-1690829

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] First enantioselective synthesis of salinipostin A, a marine cyclic enol-phosphotriester isolated from Salinispora sp.2019

    • Author(s)
      H. Okamura, T. Fujioka, N. Mori, T. Taniguchi, K. Monde, H. Watanabe, H. Takikawa
    • Journal Title

      Tetrahedron Letters

      Volume: 60 Issue: 32 Pages: 150917-150917

    • DOI

      10.1016/j.tetlet.2019.07.008

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Organocatalyst mediated asymmetric Michael reaction of malononitrile to α,β-unsaturated aldehyde2021

    • Author(s)
      Yutaro Hatano, Naoki Mori, Yujiro Hayashi
    • Organizer
      International Summer Seminar on Organic Chemistry
    • Related Report
      2021 Annual Research Report
  • [Presentation] Asymmetric Michael reaction of malononitrile to α,β-unsaturated aldehyde catalyzed by organocatalyst2021

    • Author(s)
      Yutaro Hatano, Naoki Mori, Yujiro Hayashi
    • Organizer
      日本化学会東北支部化学系学協会東北大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Synthetic study on morphine using hydrogen atom transfer reaction to construct asymmetric quaternary carbon2021

    • Author(s)
      Naoki Mori, Yujiro Hayashi
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Stereoselective synthesis of chiral anti-1,3-diols using diastereoselective epoxidation2021

    • Author(s)
      Masashi Tomikawa, Naoki Mori, Yujiro Hayashi
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Asymmetric Michael reaction of α,β-unsaturated aldehyde and malononitrile catalyzed by organocatalyst2021

    • Author(s)
      Yutaro Hatano, Naoki Mori, Yujiro Hayashi
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Synthesis of chiral anti β,δ-dihydroxy ester using organocatalyst mediated reaction as a key step2020

    • Author(s)
      Masashi Tomikawa, Naoki Mori, Yujiro Hayashi
    • Organizer
      令和2年度化学系学協会東北大会
    • Related Report
      2020 Research-status Report
  • [Presentation] アザジラクチンの合成研究から学んだ天然物合成の醍醐味2019

    • Author(s)
      森 直紀
    • Organizer
      2019年度有機合成化学協会関東支部若手研究者のためのセミナー
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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