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Free Aluminylenes: An Emerging Class of Compounds

Von Wiley-VCH zur Verfügung gestellt

Carbene analogues: Free aluminylenes and mono-base-stabilized aluminylenes are extremely reactive species. The ambiphilicity of these species allows facile activation of inert chemical bonds as well as coordination to transition metals in diverse modes. Free aluminylenes are potent synthons for unusual aluminium species.


Abstract

Aluminylenes (R−Al) are aluminium analogs of carbenes. In contrast to isolable carbenes, aluminylenes are extremely rare species. In the past years, pioneered by Schnöckel, Roesky and Power, a few free aluminylenes and their complexes have been reported. Such compounds have the aluminium atom in the oxidation state +I, which contrasts with classical organoaluminium derivatives that contain the element in the +III oxidation state. Aluminylenes, either in their free state or in the coordination sphere of a Lewis base, are capable of coordinating to transition metals and activating inert chemical bonds. Free aluminylenes are emerging as potent synthetic platforms for unusual aluminium species.

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