hydrogenchloride T=150°C; 18 h; sealed tube;

hydrogenchloride T=150°C; 18 h; sealed tube;

Multi-step reaction with 2 steps 1: 1.) (3,5-bis(trifluoromethyl)phenyl)boronic acid / 1.) CH2Cl2, from -78 deg C to RT, 2.) CH2Cl2, -78 deg C2: 78 percent / triethylamine / CH2Cl2 / Ambient temperature