"alkenes (olefins)" . "olefins" . "alkene" . . "carbon\u2013carbon double bonds" . "Olefin production and sales" . "alkenes" . "Olefins" . "dehalogenation reaction" . . "Undecene" . "Alkene" . "Tetradecene" . . "R₂C=CR₂" . "alkene polymerization" . . "olefin" . "unsaturated alkene" . "double bonds" . "double" . . . . "-ene" . . "hydroelementation" . "carbon-carbon double bond" . "unsaturated" . "C=C" . "E" . "Alkenyl" . "double bond" . . "olefinic" . "Alkene#Polymerization" . "olefins / alkenes" . "Alkenes" . "Tridecene" . "olefines" . "Alkene#Oxidation" . "Double bond" . . "''alkenes/olefins''" . . . "alk''ene''" . "alkenyl" . "Alkene#Elimination reactions" . . "Hydroolefin (Alkene)" . "Z" . "Alkene" . "alk'''en'''e" . . "alkenic" . "Alkene oxidations" . . . . "vinyl" . . .