Diego Rodríguez-Lojo, Dolores Pérez, Diego Peña and Enrique Guitián
Chem. Commun., 2015,51, 5418-5420
DOI:
10.1039/C5CC00205B,
Communication
Phenyl-substituted tetra-, penta-, hexa- and octacenes were easily obtained starting from a readily available naphthalene-based bisaryne precursor. This approach to large acenes involves a sequence of two Diels–Alder cycloadditions with dienones followed by two CO extrusion reactions.