Aluminum phosphinate and phosphates of salen ligands |
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Authors: | Mitra Amitabha Parkin Sean Atwood David A |
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Institution: | Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, USA. |
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Abstract: | A new dealkylation reaction between organophosphate esters and Salen aluminum bromide compounds has been used to prepare three new aluminum salen compounds salen((t)Bu)AlOP(O)Ph2 (1) (salen = N,N'-ethylenebis(3,5-di-tert-butylsalicylideneimine)), (MeOH)Alsalen((t)Bu)OMePO2(O)]Alsalen((t)Bu)OMePO2(O)]Alsalen((t)Bu)]Br (2), and salpen((t)Bu)AlO]2(BuO)2PO]2 (3) (salpen = N,N'-propylenebis(3,5-di-tert-butylsalicylideneimine)). Compounds 1.MeOH, 2, and 3 were characterized by single-crystal X-ray diffraction. Compound 1 is the first example of a monomeric aluminum Schiff base phosphinate. Compound 2 is a cationic Salen aluminum phosphate, and compound 3 contains an aluminophosphate ring. This work is the first example of the intentional use of an aluminum-based dealkylation reaction to form new compounds. |
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