10.1021/jo00308a030
The study focuses on the synthesis of 1,4-dinitroanthracene-9,10-dione (2) and its subsequent transformations using various diamines. The researchers explored two methods for synthesizing 2, one involving trifluoroacetic anhydride and hydrogen peroxide, and the other using trifluoroacetic acid and hydrogen peroxide. They then investigated the displacement of the nitro groups in 2 by different diamines, such as N,N-dimethylethylenediamine, 2-[(2-aminoethyl)amino]ethanol, and ethylenediamine, to produce monosubstituted and bis-substituted anthracene-9,10-dione derivatives. The study also examined the sequential displacements of the nitro substituents by diamines to prepare unsymmetrically substituted 1,4-bis[(aminoalkyl)amino]anthracene-9,10-diones. The products were characterized using various analytical techniques, including melting point determination, proton NMR, and mass spectrometry.