Titanium complexes with imidazolin-2-iminato ligands
M Tamm, S Randoll, T Bannenberg… - Chemical …, 2004 - pubs.rsc.org
M Tamm, S Randoll, T Bannenberg, E Herdtweck
Chemical communications, 2004•pubs.rsc.org… With this contribution, we present a novel and versatile method for the preparation of
imidazolin-2-iminato ligands employing imidazolin-2-ylidenes as readily available starting
materials. The reaction of the stable carbene 1,3-di-tert-butylimidazolin-2-ylidene (1) 7 with
trimethylsilyl azide in boiling toluene (110 C) for 24 h furnishes the N-silylated 2-iminoimidazoline
2 in a similar way as described for the preparation of silylated phosphoraneimines (Scheme
1). 1c … In conclusion, we have presented a new and general method for the preparation of …
imidazolin-2-iminato ligands employing imidazolin-2-ylidenes as readily available starting
materials. The reaction of the stable carbene 1,3-di-tert-butylimidazolin-2-ylidene (1) 7 with
trimethylsilyl azide in boiling toluene (110 C) for 24 h furnishes the N-silylated 2-iminoimidazoline
2 in a similar way as described for the preparation of silylated phosphoraneimines (Scheme
1). 1c … In conclusion, we have presented a new and general method for the preparation of …
The reaction of 1,3-di-tert-butylimidazolin-2-ylidene with trimethylsilyl azide furnishes the corresponding N-silylated 2-iminoimidazoline which reacts with titanium(IV) chlorides to yield imidazolin-2-iminato titanium complexes.
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