(R,R)-N,N'-bis[(2-fluorophenyl)methyl]-1,2-cyclohexanediamine PdCl2 complex; potassium carbonate in N,N-dimethyl-formamide T=120°C; Suzuki coupling; 24 h; Aerobic conditions;

copper in N,N-dimethyl-formamide Ulman reaction; Heating;

isopentyl nitrite T=130°C;

(i) aq. NaNO2, aq. HCl, (ii) /BRN= 606078/; Multistep reaction;