1: 1-chloro-3-methylbutane With iodine; magnesium in tetrahydrofuran T=70°C; 2 h; 2: 2-methoxy 5-cyanobenzene With copper(I) bromide in tetrahydrofuran T=20°C; 2 h; 3: With hydrogenchloride in tetrahydrofuran; water T=20°C;

PPA T=90 - 100°C; 1.5 h;

di-μ-chloro-bis(η4-1,5-cyclooctadiene)diiridium; caesium carbonate; triphenylphosphine in methanol T=65°C; 6 h; Sealed tube;