sodium hydroxide

Kochen;

1: 3-pentenoic acid With lithium hexamethyldisilazane in tetrahydrofuran T=0°C; 1.66667 h; 2: methyl iodide in tetrahydrofuran T=0 - 20°C; 1 h; 3: With hydrogenchloride; water in tetrahydrofuran

water in 1,4-dioxane Heating;