SEARCH Articles Figures Tables Diels intramolecular Diels intramolecular reaction Diels-Alder reactions of fumarates Diels—Alder reaction fumarate Fumarates. Diels-Alder reactions Furfuryl intramolecular Diels-Alder reaction Intramolecular Diels-Alder Of Diels-Alder reactions