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Synfacts 2010(2): 0204-0204
DOI: 10.1055/s-0029-1219094
DOI: 10.1055/s-0029-1219094
Metal-Catalyzed Asymmetric Synthesis and Stereoselective Reactions
© Georg Thieme Verlag
Stuttgart ˙ New York
Cationic Titanocene Template Catalyzed 4-exo Cyclizations
A. Gansäuer*, D. Worgull, K. Knebel, I. Huth, G. Schnakenburg
Rheinische Friedrich-Wilhelms-Universität Bonn, Germany
Further Information
Publication History
Publication Date:
21 January 2010 (online)
Significance
A cationic titanocene catalyzed the 4-exo cyclization between the epoxide and olefin moieties to form cyclobutane structures. The key success of this reaction is to use the titanocene catalyst as a template and thus turning the intramolecular cyclization to a transannular cyclization.