HYDROGENOLYSIS OF CARBOHYDRATES: IX. FORMATION OF 2,6-ANHYDRO-β-D-FRUCTOFURANOSE AND ETHYL α- AND β-D-FRUCTOFURANOSIDE FROM SUCROSE

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Abstract
A compound formed during the hydrogenolysis of sucrose in ethanol or dioxane at 180 °C, in the presence of copper chromium oxide catalyst, has been characterized as 2,6-anhydro-β-D-fructofuranose (2,5-anhydro-α-D-fructopyranose), a new type of anhydro-ketose. Ethyl α- and β-D-fructofuranosides are also produced when the hydrogenolysis reaction is carried out in ethanol, and various derivatives of these anomeric ketosides have been prepared.