Synthesis of Dimeric Iminoalanes by Oxidative Addition of Azides to (Cp*Al)₄:  Structural Characterization of (Cp*AlNSitBu₃)₂ (Cp* = C₅Me₅)

The reaction of (Cp*Al) 4 with organic azides offers an alternative synthetic route for the formation of iminoalanes with a low degree of oligomerization. This method was used to prepare the dimeric iminoalanes (Cp*AlNSi i Pr 3 ) 2 ( 1 ), (Cp*AlNSiPh 3 ) 2 ( 2 ), and (Cp*AlNSi t Bu 3 ) 2 ( 3 ). The crystal structure of 3 was determined by X-ray diffraction study.