Benzocyclooctatetraene

Benzocyclooctatetraene is a polycyclic hydrocarbon with chemical formula C12H10, composed of fused a benzene ring and a cyclooctatetraene ring. Only the benzene ring is aromatic in this compound.

Method to preparation

 * ring-opening of benzotricyclooctadiene
 * ultraviolet irradiation of benzobicyclo[2.2.2]octatriene
 * 1,2-dehydrocyclooctatetraene method.