Diels–Alder Reaction of Dimethyl Acetoxymethylenemalonate with 3,4-Dialkoxyfurans and the Utility of Its Adducts in the Stereospecific Synthesis of Lyxopyranosyl C-Glycosides
Dimethyl lyxopyranosylmalonates were synthesized in stereospecific manner from the adducts obtained from Diels–Alder reaction of 3,4-dialkoxyfurans and dimethyl acetoxymethylenemalonate, through retrogradealdolC–Cbondfissionunderreductive condition as a key step.