N,N′-di-tert-butylethylenediamine–ClnH3 –nAlNMe3 derivatives: alane-rich [(H2Al)2{µ-N(But)CH2}2] and stable, intramolecular secondary amine alane complexes [ClnH2 –nAl{N(H)(But)CH2CH2NBut], n= 0,1

Abstract

Treatment of N,N′-di-tert-butylethylenediamine with two equivalents of H₃AlNMe₃ in diethyl ether affords a novel alane-rich amido species [(H₂Al)₂{µ-N(Bu^t)CH₂}₂]1, whereas with one equivalent a stable, intramolecularly coordinated secondary amine adduct of aluminium dihydride results, [H₂[graphic omitted]Bu^t]2; the monochloro analogue [Cl(H)[graphic omitted]Bu^t]3 is accessible using ClH₂AlNMe₃, as a mixture of diastereoisomers in solution.