2,7-Bis(dimethylamino)anthracene and 2,2',7,7'-Tetrakis(dimethylamino)-9,9'-bianthracene

Abstract

The action of chloranil in boiling methanol on 2,7-bis(dimethylamino)-9,l0-dihydroanthracene (5)produces 2,2',7,7'-tetrakis(dimethylamino)-9,9'-bianthracene (6b); dehydrogenation of (5) with palladium-on-carbon in toluene gives 2,7-bis(dimethy1amino)anthracene (1).