Syntheses and Structures of Stable 1‑Aminoalumole Derivatives

Reaction of an isolable 1-bromoalumole with LiN­(SiMe₃)₂ in toluene afforded a lithium 1,1-diaminodialumoluide, while in THF the corresponding 1-aminoalumole–THF complex was obtained. These amino-substituted alumole derivatives are characterized by X-ray crystallographic analysis and NMR spectroscopy. The lithium 1,1-diaminoalumoluide and the 1-aminoalumole–THF complex were converted to each other by ligand exchange reactions.