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Metallocene‐Catalyzed C7‐Linkage in the Hydrooligomerization of Norbornene by σ‐Bond Metathesis: Insight into the Microstructure of Polynorbornene
Author(s) -
Karafilidis Christos,
Hermann Holger,
Rufiñska Anna,
Gabor Barbara,
Mynott Richard J.,
Breitenbruch Georg,
Weidenthaler Claudia,
Rust Jörg,
Joppek Werner,
Brookhart Maurice S.,
Thiel Walter,
Fink Gerhard
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200353454
Subject(s) - norbornene , pentamer , metathesis , metallocene , microstructure , catalysis , crystallography , polymer chemistry , nuclear magnetic resonance spectroscopy , materials science , chemistry , stereochemistry , organic chemistry , polymerization , polymer , biochemistry
An unusual linkage : The zirconocene‐catalyzed hydrooligomerization of norbornene proceeds by σ‐bond metathesis to form a 2‐ exo ,7′‐ syn linkage (as evident in the pentamer shown). The oligomers were characterized by gas chromatography, NMR spectroscopy , X‐ray crystallography, and DFT calculations.