2016 Fiscal Year Final Research Report
Synthesis and Applications of Noninnocent Phosphaalkene Ligands
| Project/Area Number |
26288050
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Synthetic chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
TAKEUCHI Katsuhiko 京都大学, 化学研究所, 助教 (90724097)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | ホスファアルケン / ノンイノセント配位子 / ピンサー錯体 |
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| Outline of Final Research Achievements |
It has been documented that pyridine-based PNP-pincer ligands coordinated with transition metals undergo deprotonation at the benzylic position. The resulting ligands having a dearomatized pyridine unit act as a strong base, to cause metal-ligand cooperative activation of chemical bonds in a heterolytic manner. In this study, we attempted to improve the reactivity by introducing a phosphaalkene unit possessing strong π-accepting properties toward transition metals into the ligand framework. We succeeded in the synthesis of PNP-pincer type phosphaalkene complexes, which exhibit extremely high reactivity toward N-H bond cleavage of ammonia and catalytic hydrosilylation of carbon dioxide.
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| Free Research Field |
有機金属化学
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