Citation: Arash Ghorbani-Choghamarani, Hamid Goudarziafshar, Parisa Zamani. Polyvinylpolypyrrolidonium tribromide as new and metal-free catalyst for the formylation and trimethylsilylation of hydroxyl group[J]. Chinese Chemical Letters, ;2011, 22(10): 1207-1210. doi: 10.1016/j.cclet.2011.05.020
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Trimethylsilylation of alcohols was achieved using 1, 1, 1, 3, 3, 3-hexamethyldisilazane (HMDS) as silylating agent, in the presence of polyvinylpolypyrrolidonium tribromide in acetonitrile at room temperature. Also a variety of alcohols were converted into alkyl formates by ethyl formate and a catalytic amount of polyvinylpolypyrrolidonium tribromide under solvent free conditions at room temperature.
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