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Synthesis and reactivity of a terminal aluminium–imide bond

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Abstract

The reaction of the potassium aluminyl K[Al(NONDipp)] (NONDipp = [O(SiMe2NDipp)2]2−, Dipp = 2,6-iPr2C6H3) with an organic azide generates the aluminium imide complex, K[Al(NONDipp)(NMes)] (Mes = mesityl = 2,4,6-Me3C6H2). DFT calculations indicate the Al–Nimide interaction is polarized but has appreciable multiple-bond character. This is demonstrated experimentally by the reaction with carbon dioxide, giving a rare example of a main group carbamate dianion via a [2+2] cycloaddition reaction.

Graphical abstract: Synthesis and reactivity of a terminal aluminium–imide bond

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Article information


Submitted
26 Nov 2019
Accepted
20 Jan 2020
First published
20 Jan 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Synthesis and reactivity of a terminal aluminium–imide bond

M. D. Anker, R. J. Schwamm and M. P. Coles, Chem. Commun., 2020, Advance Article , DOI: 10.1039/C9CC09214E

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