SEARCH Articles Figures Tables 2- furan, Diels-Alder Diels furan Diels-Alder reaction 2- furans Dihydro reactions Furan, 2,5-dihydro-3,4-dimethylsynthesis Furans via Diels-Alder reactions Furans, dihydro reaction Retro Diels-Alder reaction Retro-Diels-Alder Retro-reaction