copper(l) iodide; zinc in diethyl ether 14 h; Heating;

1: (methoxymethyl)-triphenylphosphonium chloride With n-butyllithium in tetrahydrofuran; hexane T=0°C; 1 h; 2: Spirolt;cyclopropane-3'-norbornangt;-2'-one in tetrahydrofuran; hexane T=0 - 20°C; 3: With hydrogenchloride in tetrahydrofuran; hexane; water T=20°C; 3 h;