Anthracene is reduced by sodium bis (2-methoxyethoxy) aluminum hydride in solutions of benzenoid hydrocarbons under the formation of radical-anion, dianion, and monoanion of 9- hydroanthracene. The existence of these species was confirmed by their electronic spectra. The main product of thermally induced alkylation reaction of the 9-hydroanthracene monoanion by the hydride at 140-1606 C was 9, 9, 10, 10-tetramethyl-9, 10- ...