1: 1-iodo-2,4-dinitrobenzene With 2,4,6-trimethylphenylmagnesium bromide in tetrahydrofuran T=-40°C; 0.0166667 h; 2: With zinc dibromide in tetrahydrofuran T=-40°C; 0.166667 h; 3: para-nitro iodo-benzene With trifuran-2-yl-phosphane; bis(dibenzylideneacetone)-palladium(0) in tetrahydrofuran T=20°C; Negishi reaction; 4 h;

sulfuric acid T=-5°C;

copper T=195°C;