Organic Transformations at a Group 4 Metallocene Framework: Formation of a Rigid ansa-Metallocene by Mannich-type Carbon-Carbon Coupling
- 12 July 1999
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition in English
- Vol. 38 (13-14) , 1923-1926
- https://doi.org/10.1002/(sici)1521-3773(19990712)38:13/14<1923::aid-anie1923>3.0.co;2-v
Abstract
New metallocene Ziegler catalysts are generated by activation of the rigid ansa‐metallocenes 2 with methylalumoxane. Complexes 2 are formed by application of an acid‐catalyzed Mannich reaction—a classical reaction from the synthetic organic repertoire—of complexes 1, which are readily available by means of a fulvene route.Keywords
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