1: 2-iodopyridine N-oxide With isopropylmagnesium chloride lithium chloride complex in tetrahydrofuran T=-40°C; Inert atmosphere; 2: N,N-dimethyl-formamide in tetrahydrofuran T=-40°C; Inert atmosphere; 3: With water; ammonium chloride in tetrahydrofuran

1: 2-iodopyridine N-oxide With isopropylmagnesium chloride lithium chloride complex in tetrahydrofuran T=-40°C; Inert atmosphere; 2: With copper(I) iodide-lithium chloride in tetrahydrofuran T=-40°C; 0.333333 h; Inert atmosphere; 3: allyl bromide Further stages;

1: 2-iodopyridine N-oxide With isopropylmagnesium chloride lithium chloride complex in tetrahydrofuran T=-40°C; Inert atmosphere; 2: benzaldehyde in tetrahydrofuran T=-40°C; Inert atmosphere; 3: With water; ammonium chloride in tetrahydrofuran