A variety of substrates containing hydroxy groups have been protected as their corresponding
trimethylsilyl ethers using 1,1,1,3,3,3-hexamethyldisilazane in the presence of indium
tribromide. The catalyst indium tribromide activates the 1,1,1,3,3,3-hexamethyldisilazane
and accelerates the reaction under mild reaction conditions at room temperature.
indium tribromide - 1,1,1,3,3,3-hexamethyldisilazane - protection - hydroxy group
- silylation