Cationic olefin Pd(II) complexes bearing α-iminoketone N,O-ligands: unprecedented isomerisation of the methoxycyclooctenyl ligand

Abstract

The reaction of [Pd(η 1,η 2-C 8H 12OMe)Cl] 2 with α-iminoketone ligands affords cationic η 1,η 2-5-methoxycyclooctenyl Pd(II) complexes, the intramolecular and interionic structures of which were investigated in both solution and solid state; such complexes undergo unprecedented isomerisation to η 1,η 2-1-methoxycyclooctenyl complexes assisted by weak nucleophiles such as olefins or alkynes.