Preparation of silica supported tin chloride: as a recyclable catalyst for the silylation of hydroxyl groups with HMDS

K Niknam, MA Zolfigol, D Saberi…

Index: Niknam, Khodabakhsh; Zolfigol, Mohammad Ali; Saberi, Dariush; Molaee, Hajar Journal of the Chinese Chemical Society, 2009 , vol. 56, # 6 p. 1257 - 1264

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Citation Number: 15

Abstract

Abstract Silica-supported tin chloride [SiO 2-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 ...