1: p-toluidine With n-butyllithium in hexane; chlorobenzene T=0 - 20°C; 0.5 h; 2: With zinc(II) chloride−TMEDA in hexane; chlorobenzene 1 h; 3: PhZnPh With iron (III) acetylacetonate; 1,2-dichloro-2-methylpropane in hexane; chlorobenzene T=80°C; 15 h;
