کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
59322 | 1419466 | 2011 | 5 صفحه PDF | دانلود رایگان |
Various alcohols and phenols were trimethylsilylated in excellent yields using hexamethyldisilazane in the presence of catalytic amounts of environmentally friendly, hydrophobic, highly thermal stable, and completely heterogeneous sulfonic acid functionalized mesostructured SBA-15 in dichloromethane at ambient temperature. Primary, bulky secondary, tertiary, and phenolic hydroxyl functional groups were transformed to the corresponding trimethylsilyl ethers in excellent yields. The simple experimental procedure was accompanied by easy recovery and the catalyst was reusable (at least 18 reaction cycles); these are attractive features of this protocol.
Exceedingly simple workup and uncomplicated recovery (eighteen reaction cycles), outstanding thermal stability of SBA-15-Ph-Pr-SO3H, quite mild, green, simple, and highly efficient synthetic procedure, are the salient features of this procedure.Figure optionsDownload as PowerPoint slide
Journal: Chinese Journal of Catalysis - Volume 32, Issues 11–12, November–December 2011, Pages 1864–1868