1: 1-nitro-4-vinyl-benzene With dichloro bis(acetonitrile) palladium(II); water; p-benozquinone; tert-butyl alcohol T=85°C; Wacker oxidation; 1 h; 2: (2,4-dinitro-phenyl)-hydrazine in tert-butyl alcohol T=30°C; regioselective reaction;

in ethanol 1 h; Heating;