Polyvinylpolypyrrolidoniume tribromide as new and metal-free catalyst for the formylation and trimethylsilylation of hydroxyl group

A Ghorbani-Choghamarani, H Goudarziafshar…

Index: Ghorbani-Choghamarani, Arash; Goudarziafshar, Hamid; Zamani, Parisa Chinese Chemical Letters, 2011 , vol. 22, # 10 p. 1207 - 1210

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Citation Number: 12

Abstract

Trimethylsilylation of alcohols was achieved using 1, 1, 1, 3, 3, 3-hexamethyldisilazane (HMDS) as silylating agent, in the presence of polyvinylpolypyrrolidoniume tribromide in acetonitrile at room temperature. Also a variety of alcohols were converted into alkyl formates by ethyl formate and a catalytic amount of polyvinylpolypyrrolidoniume tribromide under solvent free conditions at room temperature.