SEARCH Articles Figures Tables Diels-Alder reaction rate enhancement Diels-Alder reaction rate enhancement with Diels-Alder reactions rate acceleration Lewis acid catalyzed Diels—Alder reaction rate enhancement RATE ENHANCEMENT IN DIELS-ALDER REACTIONS Rate enhancement in the Diels-Alder reaction Substituent Effects on Reaction Rates of Diels-Alder Reactions Substituent effects Diels-Alder reaction rates Vinyl Diels-Alder reaction, rate