Journal article
At the Edge of Stability - Preparation of Methyl-substituted Arylsilanetriols and Investigation of their Condensation Behavior



Publication Details
Authors:
Hurkes, N.; Spirk, S.; Belaj, F.; Pietschnig, R.
Publisher:
Wiley-VCH Verlag GmbH & Co. KGaADO - 10.1002/zaac.201300349
Publication year:
2013
Journal:
Journal of Inorganic and General Chemistry
Pages range:
2631-2636
Volume number:
639
Start page:
2631
End page:
2636
ISSN:
0044-2313

Abstract
A series of arylsilanetriols [Aryl-Si(OH)3, Aryl = 2,6-dimethylphenyl, 2,4,6-trimethylphenyl 2,3,5,6-tetramethylphenyl] with two, three, and four Me groups at the Ph ring was prepd. from the corresponding trichlorosilanes. While the durene substituted silanetriol was formed exclusively, the other silanetriols were obtained together with their primary condensation products in a const. ratio 4:1. For the mesityl-substituted deriv. an alternative synthetic access via the trialkoxysilane was explored, which turned out to be inferior in terms of product yield. Despite their increased steric size the methylated phenylsilanetriols are prone to condensation in soln. as well in the solid state, although the dimerization rate is reduced compared to the unsubstituted phenylsilanetriol. All compds. were characterized with 29Si, 1H, 13C NMR, HRMS elemental anal., IR spectroscopy, and in some cases single x-ray crystallog. [on SciFinder(R)]


Keywords
arylsilyl trichloride prepn crystal mol structure reactivity, methyl arylsilanetriol prepn condensation behavior


Authors/Editors

Last updated on 2019-31-01 at 16:10