Arylidenehydroacridines from di(3-arylidene-2-oxocyclohexyl)-methanes

The reaction of di(3-benzylidene-2-oxocyclohexyl)methane and its p-methoxy analog with primary amines results in the formation of derivatives of 4,5-diarylidenehydroacridines, whereas the reaction with o-phenylenediamine is accompanied by the elimination of one arylidene group and gives derivatives of 4-arylidenehydroacridines.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1393–1395, October, 1984.