sodium hydroxide; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride in ethylene glycol dimethyl ether; water (Ar); mixt. of Ru complex, IC4H3S, Pd catalyst and aq. NaOH in DME was heated at 60°C for 8 h; cooled; dild. with CH2Cl2; washed (H2O); dried (MgSO4); evapd.; chromd. (SiO2, hexane/C6H6); elem. anal.;

catalyst: PdCl2(dppf) in sodium hydroxide; ethylene glycol dimethyl ether aq. NaOH; under Ar; mixt. of Ru complex, 1,4-dibromobenzene and Pd complex (molar ratio 2.4:1:0.03) in aq. soln. of NaOH-DME heated at 120°C for 48h in sealed tube; cooled; dissolved in CH2Cl2; org. layer sepd.; washed with water; dried over MgSO4; evapd; chromd. (SiO2, benzene); recrystd. from benzene-hexane; elem.anal.;

Cs2(CO)3; tetrakis(triphenylphosphine) palladium(0) in N,N-dimethyl-formamide under Ar; soln. of Ru complex and 1,8-diiodonaphthalene (molar ratio 2.3:1) in DMF bubbled with N2 (20 min); Pd(PPh3)4 and Cs2(CO)3 (2.3 equiv.)added; heated at 90°C for 4 h; accordingly to T. Watanabe, N. Mi yaura, A. Suzuki, Synlett (1992) 207; diluted with benzene; washed with water and concd. aq. LiCl; dried over MgSO4; evapd. by evaporator; cromd. (SiO2, hexane-benzene); elem. anal.;

Cs2(CO)3; tetrakis(triphenylphosphine) palladium(0) in N,N-dimethyl-formamide under Ar; soln. of Ru complex and 2,2'-diiodobiphenyl (molar ratio 2.3:1) in DMF bubbled with N2 for 20 min; Pd(PPh3)4 and Cs2(CO)3 (2.3 equiv.)added; heated at 90°C for 4 h; accordingly to T. Watanabe, N. Mi yaura, A. Suzuki, Synlett (1992) 207; diluted with benzene; washed with water and concd. aq. LiCl; dried over MgSO4; evapd. by evaporator; cromd. (SiO2, hexane-benzene);