Sc. Johnson et al., FACIAL SELECTIVITY IN THE CYCLOADDITION OF HETERODIENES TO CARBOHYDRATE CYCLIC KETENE ACETALS - A NOVEL SYNTHESIS OF DISACCHARIDE DERIVATIVES, Chemical communications, (9), 1998, pp. 1019-1020
Carbohydrate ketene acetals derived from mannopyranose and glucopyrano
se are shown to serve as electron-rich dienophiles in facially selecti
ve, Lewis acid-catalyzed inverse electron demand hetero-Diels-Alder re
actions.