| Project/Area Number |
15K17855
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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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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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 直接的アリール化 / パラジウム触媒 / C-H結合切断 / ホモカップリング / π共役系高分子 |
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| Outline of Final Research Achievements |
Palladium catalyzed direct arylation polymerization (DArP) has attracted much attention as a simple and easy method for preparing pi-conjugated polymers. However, DArP suffers from side reactions affording homocoupling and branching/cross-linking defects in polymer chains. In this study, we developed mixed ligand catalysts to prevent these side reactions. Two kinds of supporting ligands, whose roles are different from each other and exchange reaction are reversible, were employed to reversibly convert active but unstable catalytic intermediates into unreactive but stable dormant species. As a result, we found that the combined use of P(2-MeOC6H4)3 and TMEDA as ligands effectively prevents the side reactions affording structural defects.
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