Page "Aromatic hydrocarbon" Paragraph 12

A reaction that forms an arene compound from an unsaturated or partially unsaturated cyclic precursor is simply called an aromatization.

Many laboratory methods exist for the organic synthesis of arenes from non-arene precursors.

Many methods rely on cycloaddition reactions.

Alkyne trimerization describes the cyclization of three alkynes, in the Dötz reaction an alkyne, carbon monoxide and a chromium carbene complex are the reactants. Diels-Alder reactions of alkynes with pyrone or cyclopentadienone with expulsion of carbon dioxide or carbon monoxide also form arene compounds.

In Bergman cyclization the reactants are an enyne plus a hydrogen donor.