The scission of furylphenyllead and furylthienyllead compounds by hydrogen chloride has been presented as evidence in support of the superaromatic nature of furan.'In a by-and- large definition of aromatic compounds and aromatic properties, the Friedel-Crafts reaction is important historically as one of a small number of transformations peculiarly characteristic of aromatic compounds. 2 We now know that this reaction is shown not only by ...
