Formation of Isobenzenes by Thermal Isomerization of 1,3‐hexadiene‐5‐yne Derivatives

Prototype of a new aromatization reaction: thermal rearrangement of 1,3-hexadiene-5-yne (1) to benzene (3) via isobenzene 2, a highly reactive benezene isomer. Trapping experiments with styrene and the behavior of arenes containing 1 as a subunit indicate that this isomerization is also suitable for preparing condensed arenes and fullerene fragments.