New Janus Tricyclic Laddersiloxanes: Synthesis, Characterization, and Reactivity

New Janus Tricyclic Laddersiloxanes: Synthesis, Characterization, and Reactivity

The synthesis of four novel -type tricyclic laddersiloxanes bearing eight or six alkenyl groups is presented. These compounds possess reactive alkenyl groups on both the bridged and side silicon atoms, and their structures were determined through characterization using multinuclear 1D and 2D NMR spe...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Vol. 28; no. 15; p. 5699
Main Authors: Liu, Yujia, Tokuda, Midori, Takeda, Nobuhiro, Ouali, Armelle, Unno, Masafumi
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 27-07-2023
MDPI
Subjects:
Carbon
Chemical Sciences
hydrosilylation
Ions
Janus molecules
Mass spectrometry
Mutual fund industry
Nuclear magnetic resonance spectroscopy
Silane
Silicon
syn-type conformation
tricyclic laddersiloxanes
well-defined structures
Japan
hydrosilylation
Janus molecules
tricyclic laddersiloxanes
well-defined structures
syn-type conformation
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Summary:The synthesis of four novel -type tricyclic laddersiloxanes bearing eight or six alkenyl groups is presented. These compounds possess reactive alkenyl groups on both the bridged and side silicon atoms, and their structures were determined through characterization using multinuclear 1D and 2D NMR spectroscopy, mass spectrometry, and elemental analysis techniques. To investigate their reactivity, the compounds were subjected to hydrosilylation using two different silanes, and the resulting fully hydrosilylated compounds were thoroughly analyzed. Remarkably, all the synthesized laddersiloxanes displayed high thermal stability, suggesting their potential as promising precursors for the development of new hybrid materials. Additionally, preliminary findings indicate the possibility of exploiting the reactivity difference between the alkenyl groups attached to the D- and T-unit silicon atoms for the synthesis of Janus molecules. These findings highlight the potential of the reported compounds as valuable building blocks in the construction of innovative materials.
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ISSN:1420-3049
1420-3049
DOI:10.3390/molecules28155699