Synthesis of 2- and 4-oxo-1H-1-azaanthracene-9,10-diones from 2-amino-1,4-naphthoquinone

Article abstract of DOI:10.1016/S0040-4020(01)81213-8

In spite of the poor nucleophilicity of its amino group, which is considered to have an "amide like" character, 2-amino-1,4-naphthoquinone reacts with β-dielectrophiles to give 2-oxo- or 4-oxo-1H-1-azaanthracene-9,10-diones.