2,3-dicyano-5,6-dichloro-p-benzoquinone in benzene 4 h; Heating;

Multi-step reaction with 5 steps 1: 99 percent / H2 / 5percent Pd-C / acetic acid / 2844.3 Torr / Ambient temperature2: 81 percent / 5percent aq. KOH / 2 h / Heating3: 90 percent / methanesulfonic acid / 12 h / Ambient temperature4: 99 percent / NaBH4 / methanol; CH2Cl2 / 3 h / Ambient temperature5: 85 percent / KHSO4 / Heating  

Multi-step reaction with 7 steps 1: 1) NaOCH3, H2O, 2) AcOH / 1) MeOH, overnight, 2) benzene, H2O, 80 deg C2: 97 percent / benzene / 2 h / Heating3: 99 percent / H2 / 5percent Pd-C / acetic acid / 2844.3 Torr / Ambient temperature4: 81 percent / 5percent aq. KOH / 2 h / Heating5: 90 percent / methanesulfonic acid / 12 h / Ambient temperature6: 99 percent / NaBH4 / methanol; CH2Cl2 / 3 h / Ambient temperature7: 85 percent / KHSO4 / Heating