536993-97-2Relevant academic research and scientific papers
Chloro- and alkyltitanium complexes of a new dianionic ancillary ligand: A linked amidinate-amide
Van Meerendonk, Wouter J.,Schroeder, Kai,Brussee, Edward A. C.,Meetsma, Auke,Hessen, Bart,Teuben, Jan H.
, p. 427 - 432 (2003)
The lithium amidinate [Me3SiNC(Ph)N(CH2)3N(Me) SiMe3]-Li(THF) (2), with a pendant methyl(trimethylsilyl)amine functionality, was prepared and found to react with [TiCl4(THF)2] to give the titanium amidinate-amide dichloride complex [η2,η1-Me3SiNC(Ph) N(CH2)3NMe]TiCl2 (3) by elimination of LiCl and Me3SiCl. The elimination of Me3SiCl from the cyclopentadienyl derivative Cp[η2-Me3SiNC(Ph)N (CH2)3N(-SiMe3)Me]TiCl2 (5) to give Cp[η2,η1-Me3SiNC(Ph)N- (CH2)3NMe]TiCl (4) is much less favorable, and was found to be readily reversible. Dialkyltitanium complexes [η2,η1-Me3SiNC(Ph)N (CH2)3NMe]Ti(CH2R)2 [R = Ph (6), SiMe3 (7)] were prepared, but could not be activated for catalytic ethene polymerization. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
