Synthesis of Tricyclic Laddersiloxane with Various Ring Sizes (Bat Siloxane).

A new synthetic method for tricyclic laddersiloxanes, ladder-type silsesquioxanes with defined structures, is developed based on intramolecular cyclization of hydrosilyl-functionalized cyclic siloxanes. This method enables the construction of unprecedented laddersiloxanes with various ring sizes. Herein, the preparation of tricyclic laddersiloxanes containing 6-8-6-, 8-8-8-, or 12-8-12-membered-ring systems is reported. These products can be considered as bat-shape siloxanes, owing to their rigid inorganic siloxane body with flexible oligosiloxane "wings" as side rings. The synthesized compounds are potential building blocks for well-defined nanomaterials, porous materials, and host molecules. © 2020 Wiley-VCH GmbH.

Citation

Thanawat Chaiprasert, Yujia Liu, Pa-Kwan Intaraprecha, Rungthip Kunthom, Nobuhiro Takeda, Masafumi Unno. Synthesis of Tricyclic Laddersiloxane with Various Ring Sizes (Bat Siloxane). Macromolecular rapid communications. 2021 Mar;42(5):e2000608

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PMID: 33326166

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