1: 2.) 1N HCl / 1.) CH2Cl2, RT, 20 min, 2.) steam bath, 1.5 h 2: 1N HCl / 2 h / 100 °C 3: 50 percent / 48percent HBr, glacial acetic acid / H2O / 2 h / 120 - 130 °C View Scheme

hydrogenchloride 1.) CH2Cl2, RT, 20 min, 2.) steam bath, 1.5 h; Yield given. Multistep reaction. Yields of byproduct given;

1: 2.) 1N HCl / 1.) CH2Cl2, RT, 20 min, 2.) steam bath, 1.5 h 2: 1N HCl / 2 h / 100 °C 3: 50 percent / 48percent HBr, glacial acetic acid / H2O / 2 h / 120 - 130 °C View Scheme

hydrogenchloride 1.) CH2Cl2, RT, 20 min, 2.) steam bath, 1.5 h; Yield given. Multistep reaction. Yields of byproduct given;