2010 Fiscal Year Final Research Report
Synthesis of Heteroatom-Bridged Multinuclear Complexes and Application to Catalytic Transformations
| Project/Area Number |
21750088
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Synthetic chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MIYAKE Yoshihiro The University of Tokyo, 大学院・工学系研究科, 助教 (00347270)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 有機金属化学 / 有機合成化学 |
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| Research Abstract |
Considerable attention has recently been paid to multimetallic complexes bridged by heteroatom ligands because of their potential applicability to various organic transformations. Recently, we disclosed a unique catalytic activity of thiolato- and selenolato-bridged diruthenium complexes [Cp^*RuCl(μ-YR)]_2 toward propargylic substitution reactions of propargylic alcohols with a variety of nucleophiles. In sharp contrast, tellurolato-bridged diruthenium complexes did not work as effective catalysts for these reactions, suggesting that the nature of bridging ligands plays an important role on the catalysis of these diruthenium complexes. These results prompted us to design and prepare other heteroatom-bridged diruthenium complexes. More recently, we succeeded in the preparation of the monophosphido-bridged diruthenium complex [Cp^*RuCl(μ-PMe_2)(μ-Cl)RuClCp^*] (1) and found a different catalytic activity of 1 from that of [Cp^*RuCl(μ-YR)]_2. In addition, 1 is expected to work as a useful precursor for diruthenium complexes bridged by different heteroatoms because 1 have a bridging chloride ligand which may easily be substituted with a variety of heteroatom ligands. In fact, we also succeeded in the preparation of a variety of hybrid phosphido- and thiolato-bridged complexes [Cp^*RuCl(μ-PMe_2)(μ-SR)RuClCp^*].
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