Bulky Bisphenol Ligand-Supported Aluminum−Sodium Inverse Crown Ether Complex

A mixed aluminum−sodium phenolate ring compound with an oxo core has been synthesized and crystallographically characterized as a new inverse crown ether complex, together with some of its precursors. The experimental results showed that the Al−Na inverse crown ether can be obtained from two different approaches: (1) hydrolysis of [(EDBP)Al(CH3)2Na(THF)2] (1), followed by condensation with [(EDBP)Al(CH3)(μ2-OH)Na(THF)3] (2); (2) fast redox reaction by oxidation of a methyl group on complex 1 and reduction of molecular oxygen to oxide.