ammonium chloride; zinc in tetrahydrofuran T=20°C; 18 h;

1: p-aminobenzonitrile With tert-butylhypochlorite in dichloromethane T=-78°C; 0.166667 h; 2: methylthioacetic acid ethyl ester in dichloromethane T=-78°C; 1 h; 3: With triethylamine in dichloromethane T=-78 - 20°C; 1 h;