Journal2009
Preparation of Silica Supported Tin Chloride: As a Recyclable Catalyst for the Silylation of Hydroxyl Groups with HMDS
Journal of the Chinese Chemical Society Vol. 56, No. 6, 1257–1264
چکیده
Abstract Silica‐supported tin chloride [SiO2‐Sn(Cl)4‐n] has been prepared by mixing tin chloride with activated silica gel in toluene under refluxing conditions for one day. A range of primary, secondary, and tertiary alcohols as well as phenolic hydroxyl groups were converted into their corresponding trimethylsilyl ethers with hexamethyldisilazane in the presence of catalytic amounts of silica‐supported tin chloride at room temperature. An excellent chemoselective silylation of hydroxyl groups in the presence of other functional groups was also observed. This catalyst could be recycled and reused fifteen times without loss of efficiency.
موضوعات و کلیدواژهها
Chemical Synthesis and ReactionsAsymmetric Hydrogenation and CatalysisSynthesis and Biological EvaluationChemistrySilylationTinTolueneTrimethylsilylCatalysisChlorideSilica gelOrganic chemistryInorganic chemistry
ارجاع علمی
Khodabakhsh Niknam, Mohammad Ali Zolfigol, Dariush Saberi, Hajar Molaee. “Preparation of Silica Supported Tin Chloride: As a Recyclable Catalyst for the Silylation of Hydroxyl Groups with HMDS.” Journal of the Chinese Chemical Society, 2009. https://doi.org/10.1002/jccs.200900181