| Project/Area Number |
19K15361
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 27030:Catalyst and resource chemical process-related
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| Research Institution | The University of Tokushima |
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Principal Investigator |
KARANJIT Sangita 徳島大学, 大学院医歯薬学研究部(薬学域), 特任助教 (60784650)
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Project Status |
Completed (Fiscal Year 2020)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | Heterogenous catalyst / carbondioxide / Silver complex / Synthetic methods / bifunctional catalyst / Heterogeneous Catalyst / Carbondioxide / synthetic methods / heterogenous catalyst / nanocluster / green chemistry |
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| Outline of Research at the Start |
This proposed plan constitutes the design and synthesis of highly active and stable bifunctional nanocluster catalysts for the multicomponent coupling reactions using CO2 as C1 source and its utilization in the production of useful chemicals and materials through multiple site activation of substrate molecule to form carbonates and lactones by CO2 insertion reaction. It is expected that only nanocluster type catalyst possess such a capacity of multiple site activation of substrate and CO2 through its high surface area and reaction on the surface without additional strong oxidant or reductant.
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| Outline of Final Research Achievements |
The purpose of this research is to design highly active and stable new catalyst with multiple activation sites that possess potentiality to activate CO2 and can be applied for one pot multicomponent coupling reaction under milder reaction condition. In this context, we could synthesize heterogenous bifunctional SiO2 based catalyst through functionalization of cheap silica with imidazole-based ligand. The imidazolinium salt acted as ligand for metal and activator for substrate and CO2. With this bifunctional system, cyclic carbonates were prepared using propargyl alcohols under mild reaction condition. Our system provided green route for this reaction without any additive such as organic and inorganic bases.
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| Academic Significance and Societal Importance of the Research Achievements |
The catalyst developed by this research made the synthesis of cyclic carbonates and carbamates possible by utilizing CO2 which is a “green” perspective to the synthesis of value added compounds with easy recovery and reusability of the novel catalyst for its applicability in chemical industry.
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