iron 4 h; RefluxInert atmosphere;

1: 2-methyl propanoic acid With 4-methyl-morpholine; 2,4,6-trichloro-1,3,5-triazine in dichloromethane T=0 - 5°C; 5 h; 2: 3-trifluoromethyl-aniline in dichloromethane T=20°C; 3 h;

1: sulfuric acid; nitric acid / 3 h / 20 °C 2: iron / 4 h / |Reflux; |Inert atmosphere View Scheme

sulfuric acid; nitric acid T=0 - 5°C; 3 h;