1: (4-Chlorophenyl)-boronic acid; 1-(4-Chloro-phenyl)-3,3-bis-ethylsulfanyl-propenone With tetrakis(triphenylphosphine) palladium(0); caesium carbonate in tetrahydrofuran T=50°C; Liebeskind-Srogl coupling; 2 h; Inert atmosphere; 2: phenylhydrazine With potassium tert-butylate in tert-butyl alcohol 12 h; Reflux; regioselective reaction;