1: 100 percent / ferric chloride, chlorine / CH2Cl2 / 14 h / Ambient temperature 2: 80 percent / triethylamine / diethyl ether / 0.5 h / Ambient temperature 3: 99.8 percent / LiOH*H2O / tetrahydrofuran; H2O / 1 h / Ambient temperature 4: 65 percent / KHCO3 / H2O / 3 h / 50 °C View Scheme

aluminum oxide; sulfuric acid in dichloromethane T=15°C; 10 h; other catalysts, var. time; Product distribution;

in tetrahydrofuran 14 h; Ambient temperature;

triethylamine 1.) THF, 24 h, room t., 2.) THF, 24 h; Yield given. Multistep reaction;

triethylamine 1.) THF, 24 h, room t., 2.) THF, 24 h; Yield given. Multistep reaction;

triethylamine 1.) THF, 24 h, room t., 2.) THF, 24 h; Yield given. Multistep reaction;

triethylamine multistep reaction: 1.) THF, 24 h, room t., 2.) THF, 24 h reactions with var. chlorinated propanones under var. conditions; Product distributionMechanism;

1: 100 percent / ferric chloride, chlorine / CH2Cl2 / 14 h / Ambient temperature 2: 80 percent / triethylamine / diethyl ether / 0.5 h / Ambient temperature View Scheme