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Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
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Strained and Reactive Donor/Acceptor-Supported Metallasilanone.
Shintaro Takahashi1, Manuel A Ramos-Enríquez2, Ekaterina Bellan2
1Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan.
Angewandte Chemie (International Ed. in English)
|June 23, 2021
Summary
A novel manganese(I) metallasilanone complex was synthesized. This highly strained complex exhibits exceptional reactivity with small molecules like hydrogen and ethylene under mild conditions.
Area of Science:
- Organometallic Chemistry
- Silicon Chemistry
Background:
- Silanones are reactive silicon-oxygen compounds.
- Stabilization of silanones is challenging.
- Donor/acceptor interactions can influence reactivity.
Purpose of the Study:
- To synthesize and characterize a novel donor/acceptor-supported Mn(I)-metallasilanone.
- To investigate the structural and electronic properties of the metallasilanone.
- To explore the reactivity of the metallasilanone with small molecules.
Main Methods:
- Synthesis of the Mn(I)-metallasilanone complex.
- X-ray crystallography for structural determination.
- Spectroscopic analysis (NMR, IR) for characterization.
- Reactivity studies with H2 and ethylene.
Main Results:
- A stable Mn(I)-metallasilanone complex (3) was successfully synthesized.
- An intramolecular silanone-Mn(I) interaction was confirmed, forming a strained three-membered ring.
- The metallasilanone (3) demonstrated high reactivity towards H2 and ethylene at mild temperatures.
Conclusions:
- The donor/acceptor-supported Mn(I) complex provides a unique platform for stabilizing reactive silanones.
- The strained cyclic structure is key to the enhanced reactivity of the metallasilanone.
- This work opens new avenues for utilizing metallasilanones in small molecule activation and catalysis.
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