2021 Fiscal Year Final Research Report
Development of Catalysts Bearing Metal Centers Activated by Silicon-Based Supporting Ligands and Their Use for Transformation of C-H Bonds
| Project/Area Number |
19K05490
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 34010:Inorganic/coordination chemistry-related
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | ケイ素配位子 / 金属錯体 / 多座配位子 / 配位子設計 / 二核錯体 / 触媒 / 結合活性化 / 金属－配位子協働作用 |
|---|
| Outline of Final Research Achievements |
In this study, we developed metal complex catalysts bearing silicon-based ligands (silyl ligands), which were expected to enhance the reactivity of the metal centers. Specifically, to improve the activity of such complexes toward cleavage of chemical bonds, we designed and synthesized metal complexes supported by new silyl multidentate ligands possessing “high electron donating property” or “function to hold two metal centers”, and we also investigated their catalytic activity. Moreover, we succeeded in developing an iron catalyst for hydroboration of a C≡N triple bond of nitrile and an iridium catalyst for deuteration via cleavage of robust alkyl C-H bonds of a phosphorus compound.
|
| Free Research Field |
有機金属化学，金属錯体化学
|
| Academic Significance and Societal Importance of the Research Achievements |
本研究により，独自に設計したシリル多座配位子をもつ金属錯体を合成する手法を確立し，それらの錯体が化学結合を切断し組み換える触媒として機能することを実証できた．特に，安価で資源豊富な鉄を当該錯体触媒の中心金属として利用できることや，切断困難な脂肪族C-H結合の活性化に当該触媒が有用であることを見出した．これらの成果は，学術的な新規性が高いだけでなく，開発した触媒を用いて有用物質を従来法よりも高効率に合成する応用研究へと今後つながる可能性があるため，社会の持続可能な発展にも将来活用できると期待される．
|
