A method of preparation of polycyclic, fused aromatic and heteroaromatic hydrocarbons and intermediates

摘要

Method of production of polycyclic, fused (hetero)aromatic hydrocarbons of formula (1) by cyclization reaction constituting a modification of the Friedel-Crafts intramolecular cyclization reaction. The reaction uses ortho -acetal diarylmethanol derivatives or ortho -formyl diarylmethanols of formulae (2), (3), or (4), which in acidic environment undergo transformation to polycyclic, fused (hetero)aromatic hydrocarbons. The reaction is carried out in presence of an acidic reagent, under mild conditions, in a single reaction vessel without separation of intermediate products and in very short reaction times.