in diethyl ether 48 h;

1: 73 percent / potassium iodide, sodium hydride / 11 h / 95 °C 2: 1.) Mg, 1,2-dibromoethane / 1.) THF, reflux; 2.) THF, reflux, 1 h 3: 89 percent / diethyl ether / 48 h View Scheme

1: 1.) Mg, 1,2-dibromoethane / 1.) THF, reflux; 2.) THF, reflux, 1 h 2: 89 percent / diethyl ether / 48 h View Scheme

1: 73 percent / potassium iodide, sodium hydride / 11 h / 95 °C 2: 1.) Mg, 1,2-dibromoethane / 1.) THF, reflux; 2.) THF, reflux, 1 h 3: 89 percent / diethyl ether / 48 h View Scheme