potassium carbonate in methanol 2 h; Heating;

aluminium trichloride 24 h; Heating;

1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 95 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C 3: 95 percent / K2CO3 / acetone / Heating 4: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 5: 88 percent / K2CO3 / methanol / 2 h / Heating View Scheme

1: 1.) potassium benzoate, 2.) K2CO3 / 1.) 170/180 deg C, 8 h, 2.) acetone, reflux, 2.5-4 h 2: 95 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C 3: 95 percent / K2CO3 / acetone / Heating 4: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 5: 88 percent / K2CO3 / methanol / 2 h / Heating View Scheme

1: 95 percent / AlBr3 / acetonitrile / 0.33 h / 0 - 5 °C 2: 95 percent / K2CO3 / acetone / Heating 3: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 4: 88 percent / K2CO3 / methanol / 2 h / Heating View Scheme

1: 91 percent / AlBr3 / acetonitrile / 1 h / Ambient temperature 2: 88 percent / K2CO3 / methanol / 2 h / Heating View Scheme

hydrogenchloride 2 h; Heating;