An enyne is an organic compound consisting of a double bond (alkene) and triple bond (alkyne). Its called a conjugated enyne when the double and triple bonds are conjugated. An enyne is an organic compound consisting of a double bond (alkene) and triple bond (alkyne). Its called a conjugated enyne when the double and triple bonds are conjugated. The term is a contraction of the terms alkene and alkyne. The simplist enyne is vinylacetylene.