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Synthesis of Organosilyl‐Functionalized Cage‐Type Germanoxanes Containing Fluoride Ions
Author(s) -
Sato Naoto,
Hayashi Taiki,
Tochigi Kazuma,
Wada Hiroaki,
Shimojima Atsushi,
Kuroda Kazuyuki
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201900439
Subject(s) - silylation , hydrosilylation , cage , trimethylsilyl , fluoride , chemistry , polymer chemistry , surface modification , reactivity (psychology) , organic chemistry , inorganic chemistry , catalysis , mathematics , medicine , alternative medicine , pathology , combinatorics
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.