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Development of Molecular Conversion Reactions Taking Advantage of the Reactivity of Transition Metal-Silicon/Germanium Multiple Bonds

Research Project

Project/Area Number 15H03782
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic chemistry
Research InstitutionTohoku University

Principal Investigator

TOBITA Hiromi  東北大学, 理学研究科, 教授 (30180160)

Project Period (FY) 2015-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2015: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords有機金属錯体 / 遷移金属錯体 / 二重結合 / 三重結合 / ケイ素 / ゲルマニウム / 環化付加反応 / 触媒 / シリレン錯体 / シリリン錯体 / クロム錯体 / ゲルミレン錯体 / ゲルミリン錯体 / メタロゲルミレン / N-ヘテロ環式カルベン / 有機金属化学 / 多重結合 / 遷移金属 / タングステン錯体 / モリブデン錯体 / 鉄錯体 / 付加反応 / ルテニウム錯体 / スズ / ニッケル錯体 / ロジウム錯体 / 分子変換 / 解離平衡 / 錯体化学
Outline of Final Research Achievements

We synthesized a number of new complexes containing transition metal-heavier Group 14 element (Si, Ge) multiple bonds (double bonds, triple bonds, etc.), and clarified the characteristic molecular structures of them. We examined the reactions of them with various organic molecules, and discovered several new types of reactions such as cycloaddition reactions, in which the metal-Group 14 element multiple bonds played important roles. Moreover, taking advantage of the characteristic reactivity of these complexes, we succeeded in developing some transformation reactions of organic molecules mediated or catalyzed by these complexes.

Academic Significance and Societal Importance of the Research Achievements

炭素と遷移金属との間に多重結合を持つ錯体(カルベン錯体等)は,オレフィン・メタセシス反応等の触媒として有機合成化学において極めて重要な役割を果たしているが,その高周期14族元素類縁体の反応性の解明や応用に関する研究はほとんど進んでいなかった。本研究では,ケイ素およびゲルマニウム類縁錯体の系統的な合成と反応性の解明,さらに分子変換反応への応用に成功した。地球上に無尽蔵に存在するケイ素の有効利用に向けて,その社会的意義は大きい。

Report

(6 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (36 results)

All 2020 2019 2018 2017 2016 2015

All Journal Article (21 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 21 results,  Acknowledgement Compliant: 7 results,  Open Access: 2 results) Presentation (14 results) (of which Int'l Joint Research: 12 results,  Invited: 11 results) Book (1 results)

  • [Journal Article] Products of [2+2] Cycloaddition between a W≡Si Triple-bonded Complex and Alkynes: Isolation, Structure, and Non-classical Bonding Interaction2020

    • Author(s)
      Yoshimoto Takashi、Hashimoto Hisako、Ray Mausumi、Hayakawa Naoki、Matsuo Tsukasa、Chakrabarti Jaydeb、Tobita Hiromi
    • Journal Title

      Chemistry Letters

      Volume: 49 Issue: 3 Pages: 311-314

    • DOI

      10.1246/cl.190952

    • NAID

      130007805917

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Double and Single Hydroboration of Nitriles Catalyzed by a Ruthenium-Bis(silyl)xanthene Complex: Application to One-Pot Synthesis of Diarylamines and N-Arylimines2019

    • Author(s)
      Takeo Kitano, Takashi Komuro, Hiromi Tobita
    • Journal Title

      Organometallics

      Volume: 38 Issue: 7 Pages: 1417-1420

    • DOI

      10.1021/acs.organomet.9b00064

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Nickel Complex Containing a Pyramidalized, Ambiphilic Pincer Germylene Ligand2019

    • Author(s)
      T. Watanabe, Y. Kasai, and H. Tobita
    • Journal Title

      Chemistry A European Journal

      Volume: 25 Issue: 59 Pages: 13491-13495

    • DOI

      10.1002/chem.201903069

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Silyl-Pyridine-Amine Pincer-Ligated Iridium Complexes for Catalytic Silane Deuteration via Room Temperature C-D Bond Activation of Benzene-d62019

    • Author(s)
      T. Komuro, T. Osawa, R. Suzuki, D. Mochizuki, H. Higashi, H. Tobita
    • Journal Title

      Chemical Communications

      Volume: 55 Issue: 7 Pages: 957-960

    • DOI

      10.1039/c8cc09178a

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reactions of a Silylyne Complex with Aldehydes: Foramtion of W-Si-O-C Four-Membered Metallacycles and Their Merathesis-Like Fragmentation2019

    • Author(s)
      T. Yoshimoto, H. Hashimoto, N. Takagi, S. Sakaki, N. Hayakawa, T. Matsuo, H. Tobita
    • Journal Title

      Chem. Eur. J.

      Volume: 25 Issue: 15 Pages: 3795-3798

    • DOI

      10.1002/chem.201900457

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diruthenium Complexes with a 1,8-Naphthyridine-based Bis(silyl) Supporting Ligand: Synthesis and Structures of Complexes Containing RuII2(μ-H)2 and RuI2 Cores2018

    • Author(s)
      Indra Kusuma, Takashi Komuro, Hiromi Tobita
    • Journal Title

      Chem. Lett.

      Volume: 47 Issue: 4 Pages: 400-403

    • DOI

      10.1246/cl.171099

    • NAID

      130006638904

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent Advances in the Chemistry of Transition Metal-Silicon/Germanium Triple-Bonded Complexes2018

    • Author(s)
      H. Hashimoto, H. Tobita
    • Journal Title

      Coordination Chemistry Reviews

      Volume: 355 Pages: 362-379

    • DOI

      10.1016/j.ccr.2017.09.023

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bifunctional Iron-Amino Complexes: Highly Efficient Catalysts for Dehydrogenation of Ammonia-Borane2018

    • Author(s)
      Hirotsugu Takahashi, Takahito Watanabe, Hiromi Tobita
    • Journal Title

      Chemistry Letters

      Volume: 47 Issue: 3 Pages: 296-299

    • DOI

      10.1246/cl.171052

    • NAID

      130006434030

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An iron germylene complex having Fe-H and Ge-H bonds: synthesis, structure and reactivity2017

    • Author(s)
      T. Dhungana, H. Hashimoto, H. Tobita
    • Journal Title

      Dalton Transactions

      Volume: 2017 Issue: 25 Pages: 8167-8179

    • DOI

      10.1039/c7dt01159h

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tandem Hydrosilylation/o-C-H Silylation of Arylalkynes Catalyzed by Ruthenium Bis(silyl) Aminophosphine Complexes2017

    • Author(s)
      Takeo Kitano, Takashi Komuro, Rikima Ono, Hiromi Tobita
    • Journal Title

      Organometallics

      Volume: 36 Issue: 15 Pages: 2710-2713

    • DOI

      10.1021/acs.organomet.7b00528

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] NHC-Induced Conversion of a W-Ge Double Bond into the Triple Bond through Formation of W-Ge Single and Double Bonded Intermediates2017

    • Author(s)
      T. Fukuda, H. Hashimoto, H. Tobita
    • Journal Title

      Journal of Organometallic Chemistry

      Volume: 848 Pages: 89-94

    • DOI

      10.1016/j.jorganchem.2017.07.027

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of Base-Stabilized Hydrido(hydroborylene)Tungsten Complexes and Their Reactions with Terminal Alkynes To Give η3-Boraallyl Complexes2017

    • Author(s)
      Zeping Hui, Takahito Watanabe, Hiromi Tobita
    • Journal Title

      Organometallics

      Volume: 36 Issue: 24 Pages: 4816-4824

    • DOI

      10.1021/acs.organomet.7b00723

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrogen-bridged bis(silylene) complexes of ruthenium and iron: synthesis, structures and multi-centre bonding interactions at the M-Si-H-Si four-membered ring2017

    • Author(s)
      Hisako Hashimoto, Katsuto Komura, Takatoshi Ishizaki, Yuto Odagiri, Hiromi Tobita
    • Journal Title

      Dalton Transactions

      Volume: in press Issue: 27 Pages: 8701-8704

    • DOI

      10.1039/c7dt00505a

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Directed ortho-C-H Silylation Coupled with trans-Selective Hydrogenation of Arylalkynes Catalyzed by Ruthenium Complexes of a Xanthene-Based Si,O,Si-Chelate Ligand, “Xantsil”2016

    • Author(s)
      Takashi Komuro, Takeo Kitano, Nobukazu Yamahira, Keisuke Ohta, Satoshi Okawara, Nathalie Mager, Masaaki Okazaki, Hiromi Tobita
    • Journal Title

      Organometallics

      Volume: 印刷中 Issue: 9 Pages: 1209-1217

    • DOI

      10.1021/acs.organomet.5b01013

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] A Silylyne Tungsten Complex Having an Eind Group on Silicon: Its Dimer-Monomer Equilibrium and Cycloaddition Reactions with Carbodiimide and Diaryl Ketones2016

    • Author(s)
      T. Yoshimoto, H. Hashimoto, N. Hayakawa, T. Matsuo, H. Tobita
    • Journal Title

      Organometallics

      Volume: 35 Issue: 20 Pages: 3444-3447

    • DOI

      10.1021/acs.organomet.6b00670

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Stabilization of a Silaaldehyde by its η2-Coordination to Tungsten2016

    • Author(s)
      Tetsuya Fukuda, Hisako Hashimoto, Shigeyoshi Sakaki, Hiromi Tobita
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 55 Issue: 1 Pages: 188-192

    • DOI

      10.1002/anie.201507956

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Synthesis of a Tungsten-Silylyne Complex via Stepwise Proton and Hydride Abstraction from a Hydrido Hydrosilylene Complex2016

    • Author(s)
      T. Fukuda, T. Yoshimoto, H. Hashimoto, H. Tobita
    • Journal Title

      Organometallics

      Volume: 35 Issue: 7 Pages: 921-924

    • DOI

      10.1021/acs.organomet.6b00095

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 遷移金属-ケイ素/ゲルマニウム多重結合の化学 二重結合と三重結合の構築法および反応性2016

    • Author(s)
      飛田 博実
    • Journal Title

      Organometallic News

      Volume: 1 Pages: 8-15

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unexpected Formation of NHC-Stabilized Hydrosilylyne Complexes via Alkane Elimination from Hydrido(alkylsilylene) Complexes2015

    • Author(s)
      Tetsuya Fukuda, Hisako Hashimoto, Hiromi Tobita
    • Journal Title

      Journal of the American Chemical Society

      Volume: 137 (34) Issue: 34 Pages: 10906-10909

    • DOI

      10.1021/jacs.5b06366

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Direct Conversion of a Si-C(aryl) Bond to Si-Heteroatom Bonds in the Reactions of eta3-alfa-Silabenzyl Molybdenum and Tungsten Complexes with 2-Substituted Pyridines2015

    • Author(s)
      Y. Kanno, T. Komuro, H. Tobita
    • Journal Title

      Organometallics

      Volume: 34 Issue: 15 Pages: 3699-3705

    • DOI

      10.1021/acs.organomet.5b00335

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Insertion of a Cationic Metallogermylene into E-H Bonds (E = H, B, Si)2015

    • Author(s)
      K. Inomata, T. Watanabe, Y. Miyazaki, H. Tobita
    • Journal Title

      Journal of the American Chemical Society

      Volume: 137 Issue: 37 Pages: 11935-11937

    • DOI

      10.1021/jacs.5b08169

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Hydroboration of Nitriles Catalyzed by a Ruthenium-Bis(silyl) Chelate Complex and Subsequent Deborylative N-Arylation2019

    • Author(s)
      H. Tobita
    • Organizer
      第7回アジアケイ素化学会議
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dehydrogenative Formation of Metal-E (E = Ge, Si) Triple-Bonded Complexes from REH3 and Their Reactivity to Organic Molecules2019

    • Author(s)
      H. Tobita
    • Organizer
      16th International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead (ICCOC-GTL 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 遷移金属-ケイ素/ゲルマニウム多重結合に魅せられて ―合成から触媒作用まで―2019

    • Author(s)
      H. Tobita
    • Organizer
      第23回ケイ素化学協会シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Unique Reactivity of Transition Metal-Silicon Triple-Bonded Complexes2018

    • Author(s)
      T. Yoshimoto, K. Watanabe, H. Hashimoto, H. Tobita
    • Organizer
      28th International Conference on Organometallic Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recent Developments in the Chemistry of Tungsten-Germanium/Silicon Triple-Bonded Complexes2018

    • Author(s)
      H. Tobita
    • Organizer
      43rd International Conference on Coordination Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Reactions of Transition Metal-Silicon Triple-Bonded Complexes with Various Unsaturated Organic Molecules2018

    • Author(s)
      H. Tobita
    • Organizer
      18th Japan-Korea Joint Symposium on Organometallic and Coordination Chemistry
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis and Reactions of Novel Nickel Complexes Containing PGeP-Type Pincer Ligands2017

    • Author(s)
      H. Tobita, Y. Kasai, T. Watanabe
    • Organizer
      18th International Symposium on Silicon Chemistry
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 遷移金属-ケイ素/ゲルマニウム結合 ―その特徴と反応性および触媒への応用―2017

    • Author(s)
      飛田博実
    • Organizer
      九州大学先導物質化学研究所非常勤講師
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Synthesis and Some Characteristic Reactions of Transition Metal-Germanium and -Silicon Triple-Bonded Complexes2016

    • Author(s)
      H. Tobita
    • Organizer
      17th Korea-Japan Joint Symposium on Organometallic and Coordination Chemistry
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2016-11-03
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis and Some Unique Reactions of Neutral and Cationic Tungsten-Germanium Multiple-Bonded Complexes2016

    • Author(s)
      H. Tobita
    • Organizer
      International Conference on the Coordination and Organometallic Chemistry of Germanium, Tin and Lead, 2016
    • Place of Presentation
      Pardubice, Czech Republic
    • Year and Date
      2016-08-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent Developments in the Chemistry of Transition Metal Complexes Coordinated by Low-Valent Silicon and Germanium Species2016

    • Author(s)
      H. Tobita
    • Organizer
      27th International Conference on Organometallic Chemistry
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      2016-07-17
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel Synthetic Approaches to Transition Metal-Germanium and -Silicon Triple-Bonded Complexes2015

    • Author(s)
      H. Tobita
    • Organizer
      The 5th Asian Silicon Symposium
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2015-10-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Transformation of Transition Metal-Silicon/Germanium Double Bonds into Triple Bonds2015

    • Author(s)
      H. Tobita
    • Organizer
      IUPAC-2015, 45th World Chemistry Congress
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2015-08-09
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis of Tungsten Complexes with Cationic Mono-Substituted Germanium Species as Ligands2015

    • Author(s)
      H. Tobita, K. Inomata, T. Watanabe
    • Organizer
      5th Asian Conference on Coordination Chemistry
    • Place of Presentation
      Hong Kong
    • Year and Date
      2015-07-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 基本無機化学 第3版2016

    • Author(s)
      荻野 博,飛田 博実,岡崎 雅明
    • Total Pages
      358
    • Publisher
      東京化学同人
    • Related Report
      2016 Annual Research Report

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Published: 2015-04-16   Modified: 2022-11-04  

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