1: 4-bromomethyl-benzonitrile With indium in N,N-dimethyl-formamide T=20°C; 2: 2-iodo-4-nitro-toluene With tetrakis(triphenylphosphine) palladium(0); lithium chloride in N,N-dimethyl-formamide T=100°C; Inert atmosphere;

sulfuric acid Diazotization.anschliessend Behandeln mit Cu2O in wss. NH3;

copper T=220 - 270°C;