1.1: diethylzinc / n-heptane; 1,2-dichloro-ethane / 3 h / 0 - 5 °C 2.1: n-butyllithium / ethyl acetate; hexane; diethyl ether; tetrahydrofuran / 0.33 h / -78 - -70 °C 2.2: 0.67 h / -78 °C View Scheme

diethylzinc in n-heptane; 1,2-dichloro-ethane T=0 - 5°C; 3 h;

1: With diethylzinc in hexane; 1,2-dichloro-ethane T=0 - 20°C; 64.5 h; 2: With water; ammonium chloride in hexane; 1,2-dichloro-ethane

1: chloromethyl iodide With diethylzinc; trifluoroacetic acid in hexane; dichloromethane T=0°C; 0.666667 h; 2: 1-bromo-4-(vinyloxy)-benzene in hexane; dichloromethane T=0 - 20°C; 1.5 h; 3: With hydrogenchloride; water in hexane; dichloromethane 0.5 h;

1: With trifluoroacetic acid in hexane; dichloromethane T=0°C; 2.66667 h; 2: With chloromethyl iodide in hexane; dichloromethane T=0°C; 1.83333 h; 3: With hydrogenchloride in dichloromethane; water 0.5 h;