Lewis base stabilized lithium TMP-aluminates: an unexpected fragmentation and capture reaction involving cyclic ether 1,4-dioxane

摘要

Three Lewis base variations of the synthetically useful aluminate [L·Li(TMP)(~iBu)Al(~iBu)_2], where L is TMPH, Et_3N or PhC(=O)N~iPr_2, are reported, together with the reaction of the benzamide complex with 1,4-dioxane, which surprisingly leads to fragmentation of the cyclic ether and capture of its alkoxy vinyl ether residue within a novel dilithium dialuminiurn hexaalkyl aggregate.