copper(l) iodide; lithium chloride in tetrahydrofuran T=0 - 20°C; 12 h; Inert atmosphere;

1: 3-bromo-pyridine With lithium chloride; zinc in tetrahydrofuran T=20°C; Inert atmosphereReflux; 2: cyclopropionyl chloride With copper(l) iodide in tetrahydrofuran T=0 - 20°C; 12 h; Inert atmosphere;