1: 2,4-dichloro-benzene With magnesium; ethylene dibromide; lithium chloride in tetrahydrofuran T=25°C; 0.75 h; 2: With zinc(II) chloride in tetrahydrofuran T=25°C; 3: 2-Iodothiophene With trifuran-2-yl-phosphane; bis(dibenzylideneacetone)-palladium(0) in tetrahydrofuran T=25°C; 1 h;

tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran 6 h; Ambient temperature;

1: 3-chloro-phenyl-magnesium bromide With bismuth(III) chloride 2: thien-2-yl bromide With potassium phosphate; palladium diacetate; triphenylphosphine in N,N-dimethyl-formamide T=90°C; 1 h; Inert atmosphere;

sodium hydroxide