organic compounds
The tosyl side-chain orientation in 1,2-O-isopropylidene-5-O-p-tosyl-α-D-xylofuranose, C15H20O7S, and in 1,2-O-isopropylidene-3,5-di-O-p-tosyl-α-D-xylofuranose, C22H26O9S2, is influenced by ring substitution and intermolecular hydrogen bonding.