Reactions of iron(II) hydrides formed by selective C - F/C - H bond activation in fluoroaryl-imines

Abstract In this paper the reactions of iron(II) hydrides 6 – 10 formed by selective C F/C H bond activation in fluoroaryl-imines were reported. Iron hydrides 6 and 7 reacted with haloalkane to give rise to the corresponding iron halides 11 and 12 with the mer -rearrangement of the three trimethylphosphine ligands. The related trifluoromethylcarboxyl iron complexes 13 and 14 with the carboxyl group as monodentate ligand were obtained from the reactions of hydrides 8 and 9 with F 3 CCOOH. The reaction of iron hydride 6 with Lewis acid LiBF 4 delivered ionic iron complex 15 . Both the reaction of iron hydride 10 with Me 3 SiC C H and the reaction of iron bromide 11 with Me 3 SiC CLi could provide the derivative trimethylsilylacetylenyl iron(II) complexes 16 and 17 respectively. The molecular structures of complexes 12 , 13 and 17 were determined by single crystal X-ray diffraction.