Some highly crowded silanes, such as tri-t-butylphenyl,tri-iso-propylphenyl, tris(trimethylsilyl)methyl,t-butyl and mesityl substituted silanes, have been prepared and the order of steric bulkiness of these substituents is estimated.
Siloxan-synthese; silylgruppenwanderung am Si3CSiO-gerüst
作者:Simone Pillmann、Uwe Klingebiel
DOI:10.1016/0022-328x(87)87123-1
日期:1987.4
elimination to yield compounds of the type TsiSiFR,R′ (R, R′ = alkyl, aryl). The hydrolyzability and the products of hydrolysis of the fluorosilyl-substituted tris(silyl)methanes vary considerably. TsiSiFR2 compounds are resistant to hydrolysis. The compounds TsiSiF3 (I) and TsiSiF2Me (II) condense when hydrolyzed. The initial fluorosilanol, TsiSiF(OH)Me, can be isolated. The compounds TsiSiF2R (R = CHMe2