Friedel-Crafts reaction with some monoaryl and diaryl carbinols have been studied. The products suggest a rational mode of formation of trityl alcohol and anthracene derivatives modifying the earlier reported conjecture of their formation from carbon monoxide, generated from benzhydrol and solvent benzene. It now appears that during Friedel-Crafts reaction the benzyl carbocation generated from benzhydrol may be arylated to triphenylmethane derivative. The latter under the experimental condition forms trityl cation which abstracts the hydroxyl group from the benzhydrol to form benzyl carbocation and trityl alcohol. Benzyl carbocations act both as a nucleophile and an eletrophile and dimerize to form anthracene derivatives. Incidentally, a one-pot synthesis of 10-methylbenzo[a]fluoranthene (26), characterized by NOE, decoupling and mass spectral studies, has been achieved in good yield by the Friedel-Crafts reaction of 9-fluourenol, thus providing a simple method of its synthesis.