The 1-azaallylaluminium compounds [Al{N( R)C(Bu-t)C(H) R}{N(R)C(Bu-t)=C(H)R
}Me] (X-ray characterised), Al{N(R)C(Bu-t)C(H)R}Me-2, Al{N(R)C(Ph)=C(H)R}Me
-2 3 and Al{N(R)C(Ph)=C(H)R}(2)Me(thf) were obtained from the appropriate m
ethylaluminium chloride and 1-azaallyllithium; 3 with B(C6F5)(3) gave [Al{N
(R)C(Ph)=C(H)R}Me(thf)(OEt2)][BMe(C6F5)(3)] (R = SiMe3).