“…Some examples of palladium(II) complexes used as catalysts are: [Pd(PPh 3 ) 2 Cl 2 ] (Nicholas, 1987), [Pd(PPh 3 ) 4 ] 2+ (Bumagin et al, 1984), orthometallated palladium(II) complexes derived from (1R,2R)-1,2-diaminocyclohexane (Bravo et al, 2002) and [(PCy 3 ) 2 Pd(H)(H 2 O)]BF 4 (Cy is cyclohexyl; Ali et al, 1996). The palladium(II) complexes of tertiary phosphines and amines have been studied extensively (Okeya et al, 1981;Belykh et al, 2002). A number of mixed-ligand complexes of phosphines and amines have also been reported, e.g.…”