SEARCH Articles Figures Tables Diels-Alder reaction of butadiene and ethylene to form cyclohexene [Publishers Imprint] [Publishers Imprint] See Also: Diels-Alder reaction of butadiene and ethylene to form cyclohexene Diels-Alder reaction of butadiene and ethylene to form cyclohexene Diels-Alder reaction of butadiene and ethylene to form cyclohexene