The Reactivity of 1--α-D-glucopyranosyl-D-fructose (trehalulose) in pyridinium poly(hydrogen fluoride) or anhydrous HF. New D-glucose D-fructose mixed dianhydrides
作者:José M.García Fernández、Jacques Defaye
DOI:10.1016/s0040-4039(00)74763-0
日期:1992.12
Trehalulose undergoes intramolecular glycosylation when dissolved in pyridinium poly(hydrogen fluoride) or liquid HF, yielding a mixture of two α-D-glucopyranose β-D-fructose 1, 1′:2,2′-dianhydrides. The reaction can be directed to the kinetic fructofuranose or to the thermodynamic fructopyranose derivative by acting on the protonation conditions. The mechanism likely involves reactive cyclic oxocarbenium