An efficient method has been developed for the synthesis of Garcia
Gonzalez polyhydroxyalkyl- and C-glycosylfurans
in excellent yields from unprotected sugar aldoses with β-keto
esters by Knoevenagel condensation in the presence of anhydrous
iron(III) chloride.
d-glucose - β-keto
esters - Knoevenagel reaction - furans - carbohydrates