A diastereoselective unique route to cyclopropanes functionalized at all three ring carbon atoms from acyclic vinyl sulfone-modified carbohydrates

Pentosyl and hexosyl vinyl sulfone-modified carbohydrates having the terminal double bond and a suitably positioned leaving group are reacted in a stereoselective way with a series of nucleophiles in order to produce a myriad of cyclopropanes substituted at all three ring carbon atoms.