tetrabutylammomium bromide; potassium carbonate; tetrakis(triphenylphosphine) palladium(0) in tetrahydrofuran; toluene T=100°C; 16 h; Heating / reflux;

1,1'-bis-(diphenylphosphino)ferrocene; [Pd2(dba)2] in tetrahydrofuran T=20°C; 18 h;

1: 3-(bromo)-quinoline With (nBu)3MgLi in tetrahydrofuran; diethyl ether; hexane T=-30 - -10°C; 2: 2,5-dibromo-pyridine With 1,1'-bis-(diphenylphosphino)ferrocene; bis(dibenzylideneacetone)-palladium(0) in tetrahydrofuran; diethyl ether; hexane T=-10 - 20°C; 19 h;

trichlorophosphate in chloroform 2.5 h; Heating;