Ontology highlight
ABSTRACT:
SUBMITTER: Paradies J
PROVIDER: S-EPMC1834832 | biostudies-other | 2006 Oct
REPOSITORIES: biostudies-other
Paradies Jan J Kehr Gerald G Fröhlich Roland R Erker Gerhard G
Proceedings of the National Academy of Sciences of the United States of America 20061010 42
Bis(1-methylethenyl-cyclopentadienyl)zirconium dichloride (7a) was prepared by a fulvene route. Photolysis at 0 degrees 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 isomer (8a). This is one of the rare examples of an organic functional group chemistry that leads to carbon-carbon coupling at the framework of an intact sensitive group 4 bent metallocene complex ...[more]