John E. Davies, Paul R. Raithby, Ronald Snaith and Andrew E. H. Wheatley
Lithium N,N,N′-trimethylethylenediamide, LiN(Me)(CH2)2NMe2, reacts with o-anisaldehyde, o-MeOC6H4CHO, to afford a chiral α-amino lithium alkoxide 1, which in the solid state is a racemic tetramer with an ‘open’ pseudo-cubane core; the extent to which the N,N,N′-trimethylethylenediamido moieties internally solvate the Li centres varies with the chirality of the protected aldehyde groups.