pyridinium p-toluenesulfonate in ethyl acetate 4 h; Heating;

1: 83 percent / NEt3 / CHCl3 2: 2,6-dimethylpyridine / CH2Cl2 / electrolysis: anode: graphite disk, cathode: carbon felt, ref. electrode: Ag/AgNO3 (0.1M CH3CN) View Scheme

2,6-dimethylpyridine in dichloromethane electrolysis: anode: graphite disk, cathode: carbon felt, ref. electrode: Ag/AgNO3 (0.1M CH3CN); Yield given. Yields of byproduct given. Title compound not separated from byproducts;

2,6-dimethylpyridine; N,N,N',N'-tetrakis(4-bromophenyl)-1,4-phenylenediamine in dichloromethane electrolysis: anode: graphite disk, cathode: carbon felt, ref. electrode: Ag/AgNO3 (0.1M CH3CN); Yield given. Yields of byproduct given. Title compound not separated from byproducts;