1: 4-methoxy-aniline With n-butyllithium in hexane; chlorobenzene T=0 - 20°C; 2: With zinc(II) chloride−TMEDA in hexane; chlorobenzene 3: di-p-fluorophenyl zinc With iron (III) acetylacetonate; 1,2-dichloro-2-methylpropane in hexane; chlorobenzene T=80°C; 15 h;