1: 0.7 g / anhydrous AlCl3 / chlorobenzene / 2 h / Heating 2: 1.) ammonium chloride, Zn / 1.) 60percent aqueous 1,2-dimethoxyethane, 30 min, 30-40 deg C; 2.) free access of air, 7 h, room temperature View Scheme

aluminium trichloride in chlorobenzene 2 h; Heating;

potassium hydroxide

1: 3-methoxy-phenol With sodium hydride; copper(l) chloride in N,N-dimethyl-formamide T=20°C; Ullmann type ether formation reaction; 0.0833333 h; Inert atmosphere; 2: 1-bromonitrobenzene in N,N-dimethyl-formamide Ullmann type ether formation reaction; 3 h; Inert atmosphereReflux;

potassium ethanolate 1.) ethanol; 2.) 140-150 deg C, 3 h; Yield given. Multistep reaction;

boron trichloride in dichloromethane 7 h; Heating;

boron tribromide in 1,2-dichloro-ethane T=20°C; 27 h; Inert atmosphere;

aluminium trichloride in chlorobenzene 2 h; Heating;