1: 94 percent / NaH / benzene / 1 h / Heating 2: 87 percent / NaOMe / methanol; benzene / 20 h / Ambient temperature 3: 89 percent / KOH / H2O / 8 h / Heating 4: 90 percent / hydrazine monohydrate, KOH / benzene; bis-(2-hydroxy-ethyl) ether / 1.) 100-105 deg C, 1 h, 2.) 190-200 deg C, 6 h 5: 82 percent / 2,3-dichloro-5,6-dicyanoquinone / benzene / 5 h / Heating View Scheme

T=1100°C; P=0.01 Torr;

T=1200°C; P=0.01 Torr; flash vacuum thermolysis; Further byproducts given;

T=1200°C; P=0.01 Torr; flash vacuum thermolysis; Further byproducts given;