sodium hydroxide; dipotassium peroxodisulfate in pyridine; water

1: 45 percent / HCl, ZnCl2 / diethyl ether 2: 22 percent / K2S2O8, NaOH / pyridine; H2O View Scheme

1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 93 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C View Scheme

1: sodium-veratrate / 180 °C / unter verminderten Druck und anschliessend Erwaermen mit aethanol. Kalilauge 2: aqueous hydriodic acid; acetic acid anhydride View Scheme

1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 86 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C 3: 96 percent / K2CO3 / acetone / Heating 4: 96 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 5: 95 percent / K2CO3 / methanol / 2 h / Heating 6: 92 percent / H2 / 10percent palladium on charcoal / ethyl acetate; methanol View Scheme

1: sodium-<3,4,5-trimethoxy benzoate> / 180 °C / unter vermindertem Druck und Erwaermen des Reaktionsprodukts mit aethanol. Kalilauge 2: acetone; potassium carbonate View Scheme

KOC(O)Ph; potassium carbonate 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h; Multistep reaction;

1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 90 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C 3: 99 percent / K2CO3 / acetone / Heating 4: 90 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 5: 87 percent / K2CO3 / methanol / 2 h / Heating 6: 94 percent / H2 / 10percent palladium on charcoal / ethyl acetate; methanol View Scheme

1: sodium benzoate / 190 °C / unter vermindertem Druck; Erwaermen des Reaktionsprodukts mit aethanol. Kalilauge 2: acetone; potassium carbonate View Scheme

1: sodium-<4-methoxy benzoate> / 190 °C / unter vermindertem Druck und anschliessend Erwaermen mit aethanol. Kalilauge 2: aqueous hydriodic acid; acetic acid anhydride View Scheme