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Treatment of a secondary amine (piperidine or N-benzylmethylamine) with sequentially trimethylaluminum and carbodiimide CyNCNCy in a molar ratio of 1:1:1 afforded two mononuclear guanidinatoaluminum complexes, [{(C5H10N)C(NCy)2}AlMe2] (1) and. [{(Bz(Me)N)C(NCy)2}AlMe2] (2). Introducing dry oxygen slowly into the solution of 1 or 2, [{(C5H10N)C(NCy)2}AlMe(μ-OMe)]2 (3) and [{(Bz(Me)N)C(NCy)2}AlMe(μ-OMe)]...
Three amidinatoaluminum compounds, [{MeC(NCy) 2 }AlMe(μ-OMe)] 2 (1), [{(PhN)MeC(NCy)}AlMe(μ-OMe)] 2 (2) and [{(PhN)MeC(N t Bu)}AlMe(μ-OMe)] 2 (3), were prepared by the insertion reaction of oxygen with the corresponding aluminum amidinate in high yield and characterized by 1 H and 13 C NMR spectra and single crystal X-ray diffraction analysis...
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