A. G. Avent, S. Lawrence, M. M. Meehan
2002
Citations
0
Influential Citations
18
Citations
Journal
Collection of Czechoslovak Chemical Communications
Abstract
The reactions between equimolecular amounts of 4-bromophenylboronic acid and di- tert -butylsilanediol or tert -butylsilanetriol in toluene solutions at reflux temperatures afforded the borosilicate ring compound [(4-BrC 6 H 4 B)O 2 Si( t -Bu) 2 ] 2 ( 1 ), and the cube-based species [( t -BuSi) 4 (4-BrC 6 H 4 B) 4 O 10 ] ( 2 ), in medium (62%) and low (13%) yields, respectively. These compounds were characterised by microanalysis, IR and NMR ( 1 H, 11 B, 13 C and 29 Si) spectroscopy and single crystal X-ray crystallography. During the work-up of 2 , a sample of the boroxine, [(4-BrC 6 H 4 BO) 3 ] ( 3 ), was isolated and was characterised by single crystal diffraction.