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Volumn 30, Issue 2, 2011, Pages 263-272

Chiral-at- ansa -bridged group 4 metallocene complexes {(R 1R2C)-(3,6- T Bu2Flu)(3-R3-5-Me- C5H2)}MCl2: Synthesis, structure, stereochemistry, and use in highly isoselective propylene polymerization

Author keywords

[No Author keywords available]

Indexed keywords

BIMODAL DISTRIBUTION; BULKY SUBSTITUENTS; CATALYTIC BEHAVIOR; CATIONIC METALS; CYCLOPENTADIENYLS; DIASTEREOMERS; DICHLORO COMPLEXES; ELEMENTAL ANALYSIS; FLUORENYL; GROUP 4; HIGH ACTIVITY; ISOTACTIC POLY(PROPYLENE) (IPP); ISOTACTICS; LOW MOLECULAR WEIGHT; METALATIONS; METALLOCENE COMPLEXES; METHYLENE BRIDGE; NMR SPECTROSCOPY; NUCLEOPHILIC ADDITIONS; POLYMERIZATION CONDITIONS; PROPYLENE POLYMERIZATION; STEREOGENIC CENTERS;

EID: 78751557954     PISSN: 02767333     EISSN: 15206041     Source Type: Journal    
DOI: 10.1021/om100897j     Document Type: Article
Times cited : (23)

References (39)
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    • The small amount of proligand 2c isolated was sufficient to explore its metalation and coordination onto Zr, which eventually turned out unsuccessful (vide infra). Optimization of the synthesis of this compound, e.g., using protocol D, was therefore not further investigated.
    • The small amount of proligand 2c isolated was sufficient to explore its metalation and coordination onto Zr, which eventually turned out unsuccessful (vide infra). Optimization of the synthesis of this compound, e.g., using protocol D, was therefore not further investigated.
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    • This 40:60 molar diastereomeric mixture was obtained by evaporation/crystallization of the mother liquor obtained after the isolation of anti -3a diastereomer.
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    • 4] resulted in simultaneous hydride and methide abstraction, to afford silylium-metallocenium heterodicationic complexes. The latter species, being highly electrophilic, appeared to be at least 2 times more active in propylene polymerization than the corresponding metallocenium monocations; see: Zhang, Y.; Chen, E. Y.-X. J. Organomet. Chem. 2010, 695, 1464
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