Synthesis of some novel sulfonyl ester derivatives derived from d-mannitol

The preparation of sulfonate-derivatives of d-mannitol i.e. 1,2:3,4-di-O-isopropylidene-3,4-di-O-p-toluenesulfonate-d-mannitol (3a), 1,2:3,4-di-O-isopropylidene-3,4-di-O-methanesulfonate-d-mannitol (3b), and 1, 2:3,4-di-O-isopropylidene-3,4-di-O-trifluoromethanesulfonate-d-mannitol (3c) is described. Full characterization and methodologies of these sulfonate-d-mannitol derivatives have been described as well.