Selective Hydrolysis of O-isopropylidene Derivatives of Sugars and Polyhydroxy Alcohols Catalyzed by Sulfonated Carbon Nanocage.

A simple, clean and efficient catalyst system for the selective hydrolysis of di-/tri-O-isopropylidene derivatives of sugars and polyhydroxy alcohols to mono-O-isopropylidene derivatives has been developed using sulfonated carbon nanocage (S-CKT) as a reusable catalyst. Compared with reported method, the key advantages of this protocol are shorter reaction time and higher selectivity, simple workup and the recoverability of catalyst. [ABSTRACT FROM AUTHOR]