187749-91-3Relevant academic research and scientific papers
Linked benzylamido-cyclopentadienyl ligands: Synthesis and characterization of alkyl titanium complexes
Okuda, Jun,Eberle, Thomas,Spaniol, Thomas P.
, p. 209 - 215 (2007/10/03)
Titanium complexes of the general type Ti(η5:η1-C5H4Si-Me 2NCH2C6H3X2-2,5)Cl 2 (X = H, F), containing a linked benzylamido-cyclopentadienyl ligand, were prepared by reaction of Ti(η5-C5H4SiMe2Cl)Cl3 with lithium amide Li(NHCH2C6H3X2-2,5). A single-crystal X-ray structural analysis of Ti(η5:η1-C5H4SiMe 2NCH2C6H3F2-2,5)Cl 2 revealed a conformation in the solid state in which the aryl ring is turned away from the metal center. Ti(η5:η1-C5H4Si-Me 2NCH2C6H5)Cl2 can be alkylated with a variety of reagents to form extremely sensitive complexes of the type Ti(η5:η1-C5H4SiMe 2NCH2C6H5)R2 (R = Me, CH2C6H5, CH2SiMe3, CH2CMe2C6H5). Reaction of Li2[C5Me4Si-Me2NCH2C 6H5] with TiCl3(THF)3 gave Ti(η5:η1-C5Me4Si-Me 2NCH2C6H5)Cl2, which can also be alkylated to form dialkyl complexes of the type Ti(η5:η1-C5Me4Si-Me 2NCH2C6H5)R2 (R = Me, CH2C6H5, CH2SiMe3, C6H5). A single-crystal X-ray structural analysis of Ti(η5:η1-C5Me4Si-Me 2NCH2C6H5)(CH2C 6H5)2 suggests the presence of α-agostic bonding of one of the titanium-bound CH2C6H5 groups to the titanium center. VCH Vcrlagsgescllschaft mbH.
