Original Annulation in Anthraquinone Series: Synthesis of New 2,3-Dialkylnaphthacene-5,12-diones

2,3-Bis(chloromethyl)-1,4-anthraquinone reacts with primary nitroalkanes in a one-pot synthesis under standard SRN1 reaction conditions (inert atmosphere, photostimulation) and in a phase-transfer system to give original 2,3-dialkylnaphthacene-5,12-diones in fairly good yields.