hydrogenchloride; bromomagnesium diisopropylamide; methyl iodide 1) -40 deg C, ether, 2 h; 2) benzene, reflux, 2 h; RT, 15 min; Yield given. Multistep reaction. Yields of byproduct given;

di-tert-butyl peroxide T=140°C; 12 h;

hydrogenchloride; bromomagnesium diisopropylamide; methyl iodide 1) -40 deg C, ether, 2 h; 2) benzene, reflux, 2 h; RT, 15 min; Yield given. Multistep reaction. Yields of byproduct given;

Multi-step reaction with 2 steps 1: 1) diethyl aluminium chloride; 2) methyl iodide, 15 percent HCl / 1) ether, RT, 2 h; 2) benzene, reflux; RT, 15 min2: DMAP / pyridine