1283725-80-3Relevant academic research and scientific papers
Methylaluminium 8-quinolinolates: Synthesis, characterization and use in ring-opening polymerization (ROP) of ε-caprolactone
Sun, Wen-Hua,Shen, Miao,Zhang, Wenjuan,Huang, Wei,Liu, Shaofeng,Redshaw, Carl
experimental part, p. 2645 - 2653 (2011/05/04)
The stoichiometric reactions of 2-(2,6-R-phenylimino)quinolin-8-ol (L1-L5, L1: R = Me, L2: R = Et, L3: R = iPr, L4: R = Cl, L5: R = F) with Me3Al afforded the dimeric aluminium complexes [Me 2AlL]2 (1-5) in good yields. By contrast, stoichiometric reactions of 2-(1-(2,6-R-phenylimino)propyl) quinolin-8-ol (L6-L10, L6: R = Me, L7: R = Et, L8: R = iPr, L9: R = Cl, L10: R = F)) with Me 3Al gave the mononuclear aluminium complexes Me2AlL (6-10) accompanied with by-products of the form Me2AlL·Me 3Al (11-15). All methylaluminium complexes were characterized by NMR spectroscopy, elemental analysis, and the molecular structures of complexes 3, 6 and 8 were determined by single-crystal X-ray diffraction. Aluminium compounds 1-5 possessed negligible activity towards the ring-opening polymerization of ε-caprolactone either in the presence or absence of BnOH. In contrast, in the presence of BnOH, the mononuclear aluminium compounds 6-10 could efficiently initiate the ring-opening polymerization of ε-caprolactone; the polymerization proceeded in a living manner.
Synthesis, characterization, and ethylene (Co)polymerization behavior of trichlorotitanium 2-(1-(arylimino)propyl)quinolin-8-olates
Huang, Wei,Zhang, Wenjuan,Liu, Shaofeng,Liang, Tongling,Sun, Wen-Hua
experimental part, p. 1887 - 1894 (2012/03/10)
A series of trichlorotitanium complexes containing 2-(1-(arylimino)propyl) quinolin-8-olates was synthesized by stoichiometric reaction of titanium tetrachloride with the corresponding potassium 2-(1-(arylimino)propyl)quinolin- 8-olates and was fully characterized by elemental analysis, nuclear magnetic resonance spectroscopy, and by single-crystal X-ray diffraction study of representative complexes. All titanium complexes, when activated with methylaluminoxane, exhibited high catalytic activity toward ethylene polymerization [up to 1.15 × 106 g mol-1(Ti) h -1] and ethylene/α-olefin copolymerization [up to 1.54 × 106 g mol-1 (Ti) h-1]. The incorporation of comonomer was confirmed to amount up to 2.82 mol % of 1-hexene or 1.94 mol % of 1-octene, respectively. 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 A series of trichlorotitanium 2-(1-(arylimino)propyl)quinolin- 8-olates was synthesized and fully characterized. All titanium complexes, when activated with MAO, exhibited high catalytic activity toward ethylene polymerization and ethylene/α-olefin copolymerization with incorporation of 2.82% for 1-hexene and 1.94% for 1-octene. Copyright
