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Updated: Jan 28, 2026

Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds
Published on: October 15, 2019
Synthesis of Organosilyl-Functionalized Cage-Type Germanoxanes Containing Fluoride Ions
Naoto Sato1, Taiki Hayashi1, Kazuma Tochigi1
1Department of Applied Chemistry, Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan.
Abstract:
Eight corners of a double-four ring cage-type germanoxane, containing a fluoride ion, were successfully silylated by the combination of chlorosilanes and silazanes. Three different silyl groups, trimethylsilyl, dimethylsilyl, and dimethylvinylsilyl, were attached on the corners of germanoxane cage. The solubility and reactivity of the cage modified with dimethylvinylsilyl groups were significantly increased, allowing for further reaction. Hydrosilylation reaction between dimethylvinylsilylated cage geramanoxanes and dimethylsilylated cage siloxanes afforded porous solids. Functionalization of the corners of germanoxanes with silyl groups should provide valuable building blocks in various functional materials.
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