T. Oriyama et al., DIRECT CONVERSION OF P-METHOXYBENZYL ETHERS INTO SILYL-PROTECTED ALCOHOLS BY THE ACTION OF TRIALKYLSILYL TRIFLUOROMETHANESULFONATE AND TRIETHYLAMINE, Synlett, (1), 1995, pp. 45-46
The combined use of t-butyldimethylsilyl trifluoromethanesulfonate and
triethylamine cleaves readily p- or o-methoxybenzyl ethers to give di
rectly the corresponding t-butyldimethylsilyl ethers in high yields th
us affording an expedient way to replace the benzyl ether-type protect
ive group with the silyl ether-type one.