p-Nitrophenyl Glycosides of Chitooligosaccharides; Their Syntheses Through the Autocatalytic Fusion Reaction of Chitooligosaccharides Acetates with p-Nitrophenol

Abstract

Fusion reactions of p-nitrophenol with acetates of chito-biose, chitotriose, chitotetraose, and chitopentaose under autocatalytic conditions gave the corresponding p-nitrophenyl chitooligosides acetates in acceptable yields. Complete O-deacetylation of these acetates was attained by treatment with sodium methoxide in methanol under reflux in the case of the latter two, and at room temperature with the former two.