Oxidative addition of cationic (η6-chloroarene)tricarbonylmanganese compounds to palladium(0) complexes. Synthesis, characterisation and reactivity
摘要:
The oxidative addition of the coordinated chloroarene in [(4-RC(6)H(4)Cl)Mn(CO)(3)][X] (R = H, OCH3; X = PF6, BF4) to [Pd(PPh(3))(4)] proceeds readily at room temperature to give [{eta(6)-[{PdCl(PPh(3))(2)}(4-RC(6)H(4))(Mn(CO)(3)][X]. P-31{H-1} NMR analysis of these square-planar palladium complexes revealed that the phosphorus ligands are cis. In contrast to their tricarbonylchromium analogues, these manganese complexes could not be carbonylated because the electron-withdrawing effect of the Mn(CO)(3)(+) moiety is too strong.