All articles of this category Regioselective acetolysis of cyclomaltohexaose perbenzyl ethers at C-6 with acetic anhydride in the presence of trimethylsilyl trifluoromethanesulfonate at low temperature constitutes an easy route to the C-6 acetylated intermediate 2 . Further transformation of 2 to intermediates 3 and 4 with protected primary or secondary hydroxy groups, respectively, are described.
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Angibeaud et al. (1991) studied this question.