(±)-1,2:5,6-Di-O-isopropylidene-myo-inositol and (±)-6-O-benzoyl-1,2:4,5-di-O-isopropylidene-myo-inositol: a practical preparation of key intermediates for myo-inositol phosphates

A simple and practical synthetic procedure for the versatile intermediates, (+/-)-1,2:5,6-di-O-isopropylidene-myo-inositol and (+/-)-6-O-benzoyl-1,2:4,5-di-O-isopropylidene-myo-inositol, is described.