potassium carbonate in acetone Heating;

2,3-dicyano-5,6-dichloro-p-benzoquinone in toluene 1 h; Heating;

1: 22 percent / 150 °C 2: 1) conc. H2SO4, NaNO2, 2) 10 M H2SO4 / 1) H2O, 0 deg C, 2) reflux 3: 76 percent / K2CO3 / acetone / Heating 4: 83 percent / N,N-diethylaniline / Heating 5: 96 percent / CH3COONa / 1 h / Heating 6: 60 percent / Br2, acetic acid / Ambient temperature 7: 55 percent / 5percent KOH / ethanol / Heating 8: 94 percent / K2CO3 / acetone / Heating View Scheme

1: 22 percent / 150 °C 2: 1) conc. H2SO4, NaNO2, 2) 10 M H2SO4 / 1) H2O, 0 deg C, 2) reflux 3: 76 percent / K2CO3 / acetone / Heating 4: 83 percent / N,N-diethylaniline / Heating 5: 96 percent / CH3COONa / 1 h / Heating 6: 60 percent / Br2, acetic acid / Ambient temperature 7: 55 percent / 5percent KOH / ethanol / Heating 8: 94 percent / K2CO3 / acetone / Heating View Scheme

1: 1) conc. H2SO4, NaNO2, 2) 10 M H2SO4 / 1) H2O, 0 deg C, 2) reflux 2: 76 percent / K2CO3 / acetone / Heating 3: 83 percent / N,N-diethylaniline / Heating 4: 96 percent / CH3COONa / 1 h / Heating 5: 60 percent / Br2, acetic acid / Ambient temperature 6: 55 percent / 5percent KOH / ethanol / Heating 7: 94 percent / K2CO3 / acetone / Heating View Scheme

1: 36 percent / 150 °C 2: 76 percent / K2CO3 / acetone / Heating 3: 83 percent / N,N-diethylaniline / Heating 4: 96 percent / CH3COONa / 1 h / Heating 5: 60 percent / Br2, acetic acid / Ambient temperature 6: 55 percent / 5percent KOH / ethanol / Heating 7: 94 percent / K2CO3 / acetone / Heating View Scheme

1: 12 percent / HI (57percent) / acetic acid / 20 h / 65 °C 2: 72 percent / 2,3-dichloro-5,6-dicyanobenzoquinone / toluene / 1 h / Heating View Scheme

1: 70 percent / 4percent KOH / ethanol / 0.5 h / Ambient temperature 2: 72 percent / 2,3-dichloro-5,6-dicyanobenzoquinone / toluene / 1 h / Heating View Scheme