Related Experiment Video
Updated: May 31, 2026
11:51
Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
Isolation of Base-Coordinated 1,4-Disilaquinones.
Leif Kelling1, Mike Jörges1, Viktoria H Gessner1
1Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitaetsstrasse 150, Bochum 44801, Germany.
Organometallics
|May 29, 2026
Summary
Researchers synthesized novel silicon analogues of quinones, called 1,4-disilaquinones. These compounds exhibit unique structures and remarkable stability, opening new avenues in silicon chemistry.
Area of Science:
- Organosilicon Chemistry
- Materials Science
- Synthetic Organic Chemistry
Background:
- Quinones are vital in synthesis and materials science.
- Silicon analogues of quinones are largely unexplored.
- This study addresses the gap in understanding silicon-based quinone chemistry.
Purpose of the Study:
- To synthesize and characterize novel 1,4-disilaquinones.
- To investigate the structural and electronic properties of these silicon analogues.
- To explore their stability and reactivity.
Main Methods:
- Synthesis via dimerization of ketenyl-substituted silylenes.
- In situ generation of silylenes from metalated ketenes and chlorosilylene.
- Structural analysis using X-ray crystallography.
- Electronic structure investigation using density functional theory (DFT) calculations.
Main Results:
- Successful synthesis of two base-coordinated 1,4-disilaquinones.
- X-ray crystallography and DFT revealed a planar, unsymmetrical disilaquinone core.
- The core exhibits a resonance hybrid bonding situation.
- The compound displays significant thermal and chemical stability.
- Unreactive towards nucleophiles but sensitive to Lewis/Brønsted acids.
Conclusions:
- The study reports the first synthesis of 1,4-disilaquinones.
- These compounds possess unique structural and bonding characteristics.
- They demonstrate notable stability, suggesting potential applications.
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