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An Efficient Approach to Monophenyl‐Functionalized Octasilsesquioxanes
Author(s) -
Liu Hongzhi,
Kondo Shinichi,
Takeda Nobuhiro,
Unno Masafumi
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200900012
Subject(s) - chemistry , silane , trichlorosilane , hydrolysis , polymer chemistry , organic chemistry , medicinal chemistry , silicon
By controlling the ratio of N ‐bromosuccinimide (NBS) to trichloro( p ‐tolyl)silane, [4‐(bromomethyl)phenyl]trichlorosilane and trichloro[4‐(tribromomethyl)phenyl]silane were selectively prepared for the first time. Then, by treating theabove two trichlorosilanes with incompletely condensedsilsesquioxane, R 7 Si 7 O 9 (OH) 3 , a (monobromomethyl)phenyl‐tethered octasilsesquioxane and (tribromomethyl)phenyl‐tethered octasilsesquioxane were easily obtained. Finally, the resulting two compounds were further hydrolyzed to form a (monohydroxymethyl)phenyl‐ and monocarboxyphenyl‐functionalized octasilsesquioxane, respectively.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)