copper(l) iodide; iron (III) acetylacetonate; potassium carbonate in dimethyl sulfoxide T=140°C; 48 h; Inert atmosphere;

potassium hydride in N,N,N',N',N'',N''-hexamethylphosphoric triamide (N2); a soln. of CH3C6H4OH and KH was treated with a soln. of the Fe-compound, stirred in the dark for 35 min; solvent removed, chromd.; elem. anal.;

copper T=220 - 250°C;

(i) KOH, (ii) Cu; Multistep reaction;