Formation of N,N,N′,N′-tetramethylethylenediamine via coupling of the two charge reversed C–N bonds of Me3NO in the presence of an Eu(ii) bis(trimethylsilyl)amide complex†
Yangjuan
Li 
a
and
Yu
Gong
*a
a
and
Yu
Gong
*a
Abstract
An N,N,N′,N′-tetramethylethylenediamine (TMEDA) complex of Eu(II) was synthesized via an unprecedented self-aminomethylation of Me3NO in the presence of Eu[N(SiMe3)2]2(THF)2. The neutral TMEDA ligand is formed via the coupling of two charge reversed carbon centres from the same precursor Me3NO. In contrast, the reactions of LnII[N(SiMe3)2]2(THF)2 (Ln = Yb, Sm) with Me3NO led to the oxygen-bridged dinuclear complexes of Ln(III).
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