2,3-dicyano-5,6-dichloro-p-benzoquinone in benzene 2 h; Ambient temperature;

2,3-dicyano-5,6-dichloro-p-benzoquinone in water; acetic acid 0.5 h; Heating;

palladium on activated charcoal in various solvent(s) 2 h; Heating;

1: 95 percent / H2 / PtO2 / ethyl acetate / 2 h / 1034.3 Torr 2: 76 percent / HF / 12 h 3: 73 percent / H2NNH2, KOH / ethane-1,2-diol / 12 h / Heating 4: 95 percent / 10percent Pd/C / various solvent(s) / 2 h / Heating View Scheme

1: 73 percent / H2NNH2, KOH / ethane-1,2-diol / 12 h / Heating 2: 95 percent / 10percent Pd/C / various solvent(s) / 2 h / Heating View Scheme

1: 76 percent / HF / 12 h 2: 73 percent / H2NNH2, KOH / ethane-1,2-diol / 12 h / Heating 3: 95 percent / 10percent Pd/C / various solvent(s) / 2 h / Heating View Scheme