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Ansa-metallocene polymerization catalysts derived from [2+2]cycloaddition reactions of bis(1-methylethenyl-cyclopentadienyl)zirconium systems

Bis(1-methylethenyl-cyclopentadienyl)zirconium dichloride (7a) was prepared by a fulvene route. Photolysis at 0°C with Pyrex-filtered UV light resulted in a rapid and complete intramolecular [2+2]cycloaddition reaction to yield the corresponding cyclobutylene-bridged ansa-zirconocene dichloride isom...

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Detalhes bibliográficos
Main Authors: Paradies, Jan, Kehr, Gerald, Fröhlich, Roland, Erker, Gerhard
Formato: Artigo
Idioma:Inglês
Publicado em: National Academy of Sciences 2006
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC1834832/
https://ncbi.nlm.nih.gov/pubmed/17032775
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.0602627103
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