1376706-56-7Relevant academic research and scientific papers
Novel effective racemoselective method for the synthesis of ansa-zirconocenes and its use for the preparation of C 2-symmetric complexes based on 2-methyl-4-aryltetrahydro(s)indacene as catalysts for isotactic propylene polymerization and ethylene-propylene copolymerization
Nifant'ev, Ilya E.,Ivchenko, Pavel V.,Bagrov, Vladimir V.,Churakov, Andrei V.,Chevalier, Reynald
, p. 4340 - 4348 (2012)
A general and effective method for the racemoselective synthesis of bis-indenyl-type ansa-zirconocenes was proposed and successfully applied for the synthesis of several C2-symmetric ansa-zirconocenes based on 2-methyl-4-aryltetrahydro-s-indacene. This new racemoselective method relies on ZrCl3NH-tert-Bu as a key reagent. The formation of racemic products was confirmed by NMR studies and single-crystal X-ray diffraction. The novel complexes are potent catalysts for isotactic propylene polymerization and ethylene-propylene copolymerization.
