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A Highly Effective Route to Si−O−Si Moieties through O ‐Silylation of Silanols and Polyhedral Oligomeric Silsesquioxane Silanols with Disilazanes
Author(s) -
Kuciński Krzysztof,
Hreczycho Grzegorz
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201802757
Subject(s) - silsesquioxane , organosilicon , silylation , catalysis , chemistry , disiloxane , polymer chemistry , organic chemistry , combinatorial chemistry , polymer
A simple and highly practical catalyst‐free O ‐silylation of silanols with commercially available disilazanes has been developed under mild conditions. In the case of polyhedral oligomeric silsesquioxane (POSS) silanols and some other silanols, it was necessary to use catalytic amounts of inexpensive Bi(OTf) 3 as additional catalyst. This efficient chlorine‐free protocol involves the synthesis of a wide range of important organosilicon derivatives such as unsymmetrical disiloxanes and functionalized silsesquioxanes.