1: 24 percent / lithium diethylamide 2: 32 percent / pyridine / CH2Cl2 / 2 h 3: 76 percent / sodium iodide / acetone / 0.5 h / Ambient temperature 4: 28 percent Chromat. / potassium carbonate / acetonitrile / 20 h / 20 °C / Irradiation View Scheme

1: 21.8 g / m-chloroperbenzoic acid / CH2Cl2 / Heating 2: 24 percent / lithium diethylamide 3: 32 percent / pyridine / CH2Cl2 / 2 h 4: 76 percent / sodium iodide / acetone / 0.5 h / Ambient temperature 5: 28 percent Chromat. / potassium carbonate / acetonitrile / 20 h / 20 °C / Irradiation View Scheme

1: 1.) magnesium / 1.) ether; 2.) reflux, 2 h 2: 21.8 g / m-chloroperbenzoic acid / CH2Cl2 / Heating 3: 24 percent / lithium diethylamide 4: 32 percent / pyridine / CH2Cl2 / 2 h 5: 76 percent / sodium iodide / acetone / 0.5 h / Ambient temperature 6: 28 percent Chromat. / potassium carbonate / acetonitrile / 20 h / 20 °C / Irradiation View Scheme

1: 76 percent / sodium iodide / acetone / 0.5 h / Ambient temperature 2: 28 percent Chromat. / potassium carbonate / acetonitrile / 20 h / 20 °C / Irradiation View Scheme

titanium(III) chloride 1.) THF, 20 deg C, 2 h, 2.) THF, 20 deg C, 1 h; Yield given. Multistep reaction;

in hexane 24 h; Irradiation;

hydrogenchloride in acetonitrile Irradiation;

in hexane T=-45°C; 2 h; Irradiationvarious conditions investigated; Product distributionMechanism;