Interglucosyl Attack of Hydroxyl Group to Epoxy Ring of 2A,3A-Anhydro-(2AS)-α-cyclodextrin. Selective Preparation of 3A,2B-Anhydro-α-cyclodextrin

Article abstract of DOI:10.1246/cl.1999.917

2^A,3^A-Anhydro-(2^AS)-α-cyclodextrin was isomerized exclusively to 3^A,2^B-anhydro-α-cyclodextrin by the reaction with aqueous alkali.This implies the selective and interglucosyl attack of 3^F-OH to the epoxy ring.