A one-pot selective deprotective acetylation of benzyl ethers and OTBDMS ethers using the BF<SUB>3</SUB>·Et<SUB>2</SUB>O-NaI-Ac<SUB>2</SUB>O reagent system

An efficient selective deprotection followed by acetylation of several benzyl ethers, including 6-OBn ethers of monosaccharides, and -OTBDMS ethers has been developed by using the BF<SUB>3</SUB>·Et<SUB>2</SUB>O-NaI-Ac<SUB>2</SUB>O reagent system. In addition, both benzylidene and isopropylidene groups are deprotected to form the corresponding diacetates