Abstract
SiO2/N2O4 system was used as an efficient oxidant for the conversion of cyclic dioxalanes and dithianes to parent carbonyl compound in CH2Cl2 at room temperature. We also found Fe(NO3)3.9H2O/H3PMo12O40.xH2O could be used as a powerful oxidation complex for similar transformations at room temperature under solvent free conditions.
Keywords: Dinitrogen tetroxide, heteropoly acids, ferric nitrate, dioxalanes, dithianes, molibdatophosphoric acid, deprotection
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