Efficient Trimethylsilylation and Tetrahydropyranylation of Alcohols in the Presence of 1,3-Dibromo-5,5-dimethylhydantoin

Chemoselective trimethylsilylation and tetrahydropyranylation of benzylic and primary and secondary aliphatic alcohols proceed efficiently in the presence of 1,3-dibromo-5,5-dimethylhydantoin (DBH) under mild and completely heterogeneous reaction conditions in excellent yields.