1: 21.5 percent / CH2Cl2 / Heating 2: 1.) Et4N(1+)*Br(1-) / 1.) CH3CN, electrolysis by 1.6 V (against SCE) with Pt cathode, Al anode, 2.) 2 h, room temp. View Scheme

tetraethylammonium bromide 1.) CH3CN, electrolysis by 1.6 V (against SCE) with Pt cathode, Al anode, 2.) 2 h, room temp.; Yield given. Multistep reaction;