Conjugated Dienes

Many of the compounds in this group may be highly flammable. Those that are gases are explosive.

Dienes exhibit unique chemistry such as the Diels-Alder reaction (specifically, a cycloaddition) between a conjugated diene and a substituted alkene, commonly termed the dienophile, to form a substituted cyclohexene system. The reaction can proceed even if some of the atoms in the newly formed ring are not carbon. Butadiene can be oxidized to form explosive peroxides. Many dienes can be induced into polymerization reactions by initiation by acids, bases, metal ions, various metal/organometallic species with the release of large amounts of energy as heat.

Not toxic, except as gases that can exclude oxygen in breathing zone during accident.

Dienes form a class of compounds that possess conjugated carbon-carbon double bonds. Butadiene is the classic diene and is vital to the formulation of many polymers.

Abamectin, cycloheptatriene, mezerein, octadiene, sulfan blue, butadiene, pentadiene.