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Issue 40, 2016
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Unexpected reactivity of an alkylaluminum complex of a non-innocent 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene ligand (dpp-bian)

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Abstract

The reaction of (dpp-bian)AlEt(Et2O) (1) (dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with 4,4′-dimethoxybenzophenone leads to the replacement of Et2O with the ketone resulting complex (dpp-bian)AlEt[O[double bond, length as m-dash]C(4-MeOC6H4)2] (2). The reaction of compound 1 with 2,6-di-tert-butyl-4-methylphenol (1 : 1) or Ph2NH (1 : 1) affords the addition products [dpp-bian(H)]AlEt[O(2,6-tBu2-4-MeC6H2)] (3) and [dpp-bian(H)]AlEt(NPh2) (4) correspondingly. Treatment of complex 1 with 0.5 molar equivalents of H2O gives ethylalumoxane {[dpp-bian(H)]AlEt}2(μ-O) (5). Newly prepared complexes 2–5 have been characterized by NMR and IR spectroscopy, and the molecular structures of 2, 3, and 5 have been determined by single crystal X-ray analysis.

Graphical abstract: Unexpected reactivity of an alkylaluminum complex of a non-innocent 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene ligand (dpp-bian)

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Publication details

The article was received on 04 May 2016, accepted on 31 May 2016 and first published on 15 Jun 2016


Article type: Paper
DOI: 10.1039/C6DT01750A
Citation: Dalton Trans., 2016,45, 15872-15878

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    Unexpected reactivity of an alkylaluminum complex of a non-innocent 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene ligand (dpp-bian)

    M. V. Moskalev, A. N. Lukoyanov, E. V. Baranov and I. L. Fedushkin, Dalton Trans., 2016, 45, 15872
    DOI: 10.1039/C6DT01750A

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