Silica triflate as a new, efficient, and reusable reagent for the chemoselective silylation of alcohols and phenols and deprotection of silyl ethers

摘要

Silica triflate was easily prepared via reaction of silica gel anal trifluoromethane sulfonyl chloride at room temperature. This compound can be employed as an efficient and reusable reagent for the chemoselective silylation of alcohols and phenols in solution and under solvent-free conditions. This reagent. also effectively catalyzed the deprotection of silyl ethers in refluxing methanol.