Reactivity studies of a four-coordinate methyl chloro aluminium aminophenolate complex with B(C6F5)3

Article abstract of DOI:10.1016/j.jorganchem.2006.07.001

The X-ray characterized four-coordinate aminophenolate aluminium complex {6-(CH₂NMe₂)-2-CPh₃-4-Me-C₆H₂O}Al(Me)(Cl) (1), which is readily available by reaction of the corresponding aminophenolate Li salt with MeAlCl₂, slowly reacts with B(C₆F₅)₃ to yield a 1/1 mixture of the Al methyl cation {6-(CH₂NMe₂)-2-CPh₃-4-Me-C₆H₂O}Al(Me)(THF)⁺ (2, as MeB (C₆ F₅)₃^- salt) and the Al dichloro derivative {6-(CH₂NMe₂)-2-CPh₃-4-Me-C₆H₂O}AlCl₂ (3). This reaction most likely proceeds via a Me^- abstraction/ligand exchange sequence.