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Activation of dihydrogen by masked dialumenes (Al=Al doubly bonded species) is reported. Reactions of barrelene‐type dialumanes, which have the reactivity as masked equivalents of 1,2‐diaryldialumenes ArAl=AlAr, with H2 afforded dihydroalumanes ArAlH2 at room temperature (Ar: bulky aryl groups). These dihydroalumanes form hydrogen‐bridged dimers [ArHAl(μ‐H)]2 in the crystalline state, while a monomer–dimer...
Aluminium aktiviert Diwasserstoff: Spezies mit Al‐Al‐Doppelbindung, die durch eine Retro‐Diels‐Alder‐Reaktion aus bicyclischen Organoaluminiumverbindungen mit sperrigen Arylsubstituenten entstehen, reagieren mit Diwasserstoff zu dimeren Aluminiumdihydriden. In ihrer Zuschrift auf S. 13069 ff. zeigen N. Tokitoh et al., dass die Wasserstoffaktivierung bei Raumtemperatur und unter Umgebungsdruck abläuft...
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