Imido and Amido Titanium Complexes that Contain a [OSSO]‐Type Bis(phenolato) Ligand: Synthesis, Structures, and Hydroamination Catalysis
作者:Bing Lian、Thomas P. Spaniol、Patricia Horrillo‐Martínez、Kai C. Hultzsch、Jun Okuda
DOI:10.1002/ejic.200800977
日期:2009.1
protonolysis of [Ti(NMe2)4] with bis(phenol) edtbpH2. Reaction of [Ti(NMe2)Cl3] with the lithium salt of the bis(phenol) gave the chloro dimethylamido complex [Ti(edtbp)(NMe2)Cl] (5) in high yield. All complexes were characterized by NMR spectroscopy and elemental analysis. Additionally, complexes 1 and 5 were studied by X-ray diffraction analysis. Imido titaniumcomplex 1 shows moderate activity in the
Neutral and cationic aluminium complexes containing a chiral (OSSO)-type bis(phenolato) ligand: synthesis, structures and polymerization activity
作者:Bing Lian、Haiyan Ma、Thomas P. Spaniol、Jun Okuda
DOI:10.1039/b909287k
日期:——
two square pyramidal aluminium centers with two "fly-over" bis(phenolate) ligands. The neutral methyl aluminium complexes are active in the polymerization of methyl methacrylate (MMA) and in the ring-polymerization of rac-lactide (LA), producing PMMAs and PLAs in a controlled fashion. The cationic aluminium complexes were active in the cationic polymerization of isoprene and benzofuran.