1: sodium benzoate / 180 °C / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge 2: aqueous hydriodic acid; acetic acid anhydride / 150 °C View Scheme

1: sodium benzoate / 180 °C / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge 2: aluminium chloride; nitrobenzene 3: diethyl ether View Scheme

1: sodium benzoate / 180 °C / Erwaermen des Reaktionsprodukts mit wss.-aethanol. Natronlauge 2: aluminium chloride; nitrobenzene View Scheme

potassium 4-methoxybenzoate T=180°C;

1: potassium-<4-methoxy benzoate> 2: aqueous hydriodic acid View Scheme

1: K2CO3 / dimethylformamide / 0.17 h / 150 °C 2: 100 percent / conc. HCl, acetic acid / 1 h / Ambient temperature 3: 83 percent / K2CO3, KI / acetone; dimethylformamide / Heating 4: 75 percent / AlBr3, NaI / acetonitrile / 0.25 h / 0 °C 5: pyridine / 2 h / 70 - 80 °C 6: KOH / pyridine / 80 °C 7: 87 percent / conc. H2SO4, acetic acid / 1 h / 50 °C 8: 71 percent / dimethyldioxirane / acetone / 0 °C 9: 96 percent / K2CO3 / acetone / Heating 10: 91 percent / AlCl3 / acetonitrile / 0.5 h / Ambient temperature 11: 90 percent / K2CO3 / methanol / 1.5 h / Heating 12: 90 percent / H2 / 10percent Pd/C / methanol; ethyl acetate / Ambient temperature View Scheme

1: K2CO3 / dimethylformamide / 0.17 h / 150 °C 2: 100 percent / conc. HCl, acetic acid / 1 h / Ambient temperature 3: 83 percent / K2CO3, KI / acetone; dimethylformamide / Heating 4: 75 percent / AlBr3, NaI / acetonitrile / 0.25 h / 0 °C 5: pyridine / 2 h / 70 - 80 °C 6: KOH / pyridine / 80 °C 7: 97 percent / conc. H2SO4, acetic acid / 1 h / 50 °C 8: 56 percent / dimethyldioxirane / acetone / 0 °C 9: 98 percent / K2CO3 / acetone / Heating 10: 85 percent / AlCl3 / acetonitrile / 0.5 h / Ambient temperature 11: 85 percent / K2CO3 / methanol / 1.5 h / Heating 12: 76 percent / H2 / 10percent Pd/C / methanol; ethyl acetate / Ambient temperature View Scheme

1: K2CO3 / dimethylformamide / 0.17 h / 150 °C 2: 100 percent / conc. HCl, acetic acid / 1 h / Ambient temperature 3: 83 percent / K2CO3, KI / acetone; dimethylformamide / Heating 4: 75 percent / AlBr3, NaI / acetonitrile / 0.25 h / 0 °C 5: pyridine / 2 h / 70 - 80 °C 6: KOH / pyridine / 80 °C 7: 90 percent / conc. H2SO4, acetic acid / 1 h / 50 °C 8: 67 percent / dimethyldioxirane / acetone / 0 °C 9: 92 percent / K2CO3 / acetone / Heating 10: 93 percent / AlCl3 / acetonitrile / 0.5 h / Ambient temperature 11: 60 percent / K2CO3 / methanol / 1.5 h / Heating 12: 87 percent / H2 / 10percent Pd/C / methanol; ethyl acetate / Ambient temperature View Scheme

potassium carbonate; acetone

1: K2CO3 / dimethylformamide / 0.17 h / 150 °C 2: 100 percent / conc. HCl, acetic acid / 1 h / Ambient temperature View Scheme