1: carbon monoxide With C28H22CoN4O6 in butan-1-ol T=60°C; P=760.051 Torr; 2 h; GloveboxHigh pressureGreen chemistry; 2: 4,4'-bis-(chloromethyl)-biphenyl With tetra-(n-butyl)ammonium iodide; sodium hydroxide in butan-1-ol T=60°C; P=760.051 Torr; 22 h; GloveboxHigh pressureGreen chemistry; regioselective reaction;

potassium hydroxide in ethanol T=150°C; P=7500.6 Torr; 0.0833333 h; microwave irradiation;

hydrogenchloride; sodium hydroxide in ethanol; water 9 h; Heating;

1: 97 percent / acetonitrile / 0.08 h / 150 °C / 7500.6 Torr / microwave irradiation 2: 92 percent / KOH / ethanol / 0.08 h / 150 °C / 7500.6 Torr / microwave irradiation View Scheme

1: 75 percent / SnCl4 / CH2Cl2 / 30 h / 0 °C 2: 90 percent / Zn, acetic acid / 1 h / 100 - 110 °C 3: 67 percent / sodium hydroxide, HCl / ethanol; H2O / 9 h / Heating View Scheme

1: 90 percent / Zn, acetic acid / 1 h / 100 - 110 °C 2: 67 percent / sodium hydroxide, HCl / ethanol; H2O / 9 h / Heating View Scheme

acetic acid; mercury(II) oxide

1: (i) aq. HCl, NaNO2, (ii) /BRN= 1733365/, CuCl2*H2O 2: HgO, AcOH View Scheme