Syntheses of organofunctional siloxanes containing metal-ligating sidechains
作者:Brian J. Brisdon、Andrew M. Watts
DOI:10.1039/dt9850002191
日期:——
potential metal-ligating entities CHCH2, Ph, CN, cyclohexenyl, pyridine, and PPh2, n= 1 or 2) have been synthesised from commercially available dichlorosilanes by one of three procedures. The products are air-stable oils with the exception of the pyridine- and phosphine-functionalised compounds which react vigorously with oxygen, and the spectroscopic properties of corresponding organofunctional siloxanes
通式为Me 3 SiO [SiMe(R)O] n SiMe 3的三,四和五硅氧烷的范围(R =乙烯基,n = 1-3; R =被潜在金属封端的烷基链-连接实体CH CH 2,Ph,CN,环己烯基,吡啶和PPh 2(n = 1或2)已通过三种方法之一由市售二氯硅烷合成。产物是空气稳定的油,除了吡啶和膦官能化的化合物与氧气剧烈反应外,相应的有机官能化硅氧烷的光谱性质非常相似,对n的依赖性很小。
Superoxide-stable ionic liquids: new and efficient media for electrosynthesis of functional siloxanes
The electrogeneration of diorganylsilanones from difunctional precursors Y(CH2)3(Me)SiX2 and Ph2SiX2
(Y = NH2, CF3, CN; X = Cl, OEt, OMe), performed in the presence of hexamethyldisiloxane or hexamethylcyclotrisiloxane (D3) in the ionic liquids [C5H5NC8F18]·NTf2, [C5H5NC18H38]·NTf2 and Me3BuN·NTf2, which reveal high solubility of oxygen and are inert toward superoxide anion, allows functionalized siloxanes to be produced selectively in good isolated yields.