Preparation of 3A,6A-Anhydro-β-cyclodextrin and Its Taka Amylolysis
3A,6A-Anhydro-β-cyclodextrin was prepared by the reaction of 6-O-(p-tosyl)-β-cyclodextrin with aqueous alkali. This anhydrocyclodextrin was enzymatically hydrolyzed by Taka amylase to give 3″,6″-anhydromaltotetraose exclusively.