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Synthesis and Characterization of Unsymmetrical Double-Decker Siloxane (Basket Cage)

Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Gunma, Kiryu 376-8515, Japan
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Author to whom correspondence should be addressed.
Academic Editor: Vadim A. Soloshonok
Molecules 2019, 24(23), 4252; https://doi.org/10.3390/molecules24234252
Received: 6 November 2019 / Revised: 19 November 2019 / Accepted: 20 November 2019 / Published: 22 November 2019
(This article belongs to the Special Issue Synthesis of Functional Silicon Compounds)
The one-pot synthesis of an unsymmetrical double-decker siloxane with a novel structure via the reaction of double-decker tetrasodiumsilanolate with 1 equiv. of dichlorotetraphenyldisiloxane in the presence of an acid is reported herein for the first time. The target compound bearing all phenyl substituents on the unsymmetrical siloxane structure was successfully obtained, as confirmed by 1H-NMR, 13C-NMR, 29Si-NMR, IR, MALDI-TOF, and X-ray crystallography analyses. Additionally, the thermal properties of the product were evaluated by TG/DTA and compared with those of other siloxane cage compounds. View Full-Text
Keywords: basket shape; unsymmetrical structure; functional siloxane; all phenyl groups; well-defined compound basket shape; unsymmetrical structure; functional siloxane; all phenyl groups; well-defined compound
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MDPI and ACS Style

Kunthom, R.; Takeda, N.; Unno, M. Synthesis and Characterization of Unsymmetrical Double-Decker Siloxane (Basket Cage). Molecules 2019, 24, 4252.

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