1: 7 percent / p-methoxybenzaldehyde, Me4NBF4 / dimethylformamide / Ambient temperature; controlled potential electrolysis; cathode: Hg; electrode ref.: AgI/Ag 2: K2CO3 / tetrahydrofuran 3: 10 percent / Me4NBF4 / dimethylformamide / Ambient temperature; controlled potential electrolysis; cathode: Hg; electrode ref.: AgI/Ag View Scheme

1: 7 percent / p-methoxybenzaldehyde, Me4NBF4 / dimethylformamide / Ambient temperature; controlled potential electrolysis; cathode: Hg; electrode ref.: AgI/Ag 2: 22 percent / Me4NBF4, p-methoxybenzaldehyde / dimethylformamide / Ambient temperature; controlled potential electrolysis; cathode: Hg; electrode ref.: AgI/Ag View Scheme

1: 95 percent / sodium sulfite / ethanol; H2O / 0.33 h / Ambient temperature 2: 96 percent / sodium hypobromite / H2O View Scheme

sodium sulfite in ethanol; water 0.333333 h; Ambient temperature;

[Me4N][BF4]; 4-methoxy-benzaldehyde in N,N-dimethyl-formamide Ambient temperaturecontrolled potential electrolysis; cathode: Hg; electrode ref.: AgI/Ag;

[Me4N][BF4] in N,N-dimethyl-formamide Ambient temperaturecontrolled potential electrolysis; cathode: Hg; electrode ref.: AgI/Ag; Yield given;

sodium hypochlorite 0.0833333 h;

tetraethylammonium bromide in N,N-dimethyl-formamide Ambient temperaturecarbon felt cathode, magnesium rod as anode, 150 mA constant current; Yield givenYields of byproduct given. Title compound not separated from byproducts;