Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Addition of p-toluenesulfonic anhydride (Ts 2 O) to β-cyclodextrin (CD) in water, followed by treatment with 10% aqueous NaOH solution for 10 min and removal of excess Ts 2 O by filtration, gave mono-6-deoxy-6-(O-p-toluenesulfonyl)-CD (1) in 61% yield.