2011 Fiscal Year Final Research Report
Development of Novel Heterogeneous Ruthenium Catalysts for Environmentally-benign Organic Transformations
| Project/Area Number |
21360393
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Catalyst/Resource chemical process
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| Research Institution | Kyoto University |
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Principal Investigator |
WADA Kenji 京都大学, 工学研究科, 准教授 (10243049)
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| Co-Investigator(Kenkyū-buntansha) |
HOSOKAWA Saburo 京都大学, 大学院・工学研究科, 助教 (90456806)
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| Project Period (FY) |
2009 – 2011
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| Keywords | グリーンケミストリー / 不均一系触媒 |
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| Research Abstract |
The development of novel solid catalysts effective for environmentally benign, highly atom-efficient organic transformations is highly desired. In the present study, CeO2-or ZrO2-supported ruthenium catalysts which are quite effective for the direct arylation and alkylation of stable aromatic C-H bond activation, the allyl transfer reactions via the cleavage and reconstruction of stable C-C bonds, the regio-and stereoselective addition of carboxylic acids to alkynes, the selective cross-coupling of unsaturated hydrocarbons, and the synthesis of indole via the dehydrogenative cyclization of an amino alcohol have been developed. These catalysts are recyclable without loss of significant activities, and the leaching of Ru species into solution is negligible. The spectroscopic studies, e. g. XAFS and FTIR studies, have revealed the formation of distorted Ru=O species on the surface of ceria, which would be transformed to low-valent active Ru species in situ.
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