2012 Fiscal Year Final Research Report
Multipoint-Immobilized Ligands for Controlling Structures of Metal Complexes and Their Catalytic Performances
| Project/Area Number |
23850001
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Synthetic chemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
IWAI Tomohiro 北海道大学, 大学院・理学研究院, 助教 (30610729)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 触媒有機化学 / 多点固定化 / シリカゲル / ホスフィン / 遷移金属錯体触媒 / 不活性結合活性化 / 有機ホウ素化合物 / カップリング反応 |
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| Research Abstract |
A silica-tripod-supported triarylphosphine (Silica-3p-TPP) was synthesized and characterized structurally using solid-state NMR analysis. The tripodal immobilization constrained the mobility of the phosphine molecule efficiently, directing its P lone pair upward. This resulted in selective formation of a 1:1 metal-phosphine species that was free from unfavorable steric repulsions caused by the surface. The silica-supported tripod phosphine showed excellent ligand performances for transition metal catalyzed transformations of unreactive bonds.
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