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Synlett 2000; 2000(9): 1357-1359
DOI: 10.1055/s-2000-7133
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Titanocene Catalyzed 5-exo Cyclizations of Epoxides

Andreas Gansäuer* , Marianna Pierobon
  • *Institut für Organische Chemie und Biochemie, Albert-Ludwigs-Universität, Albertstr. 21, D-79104 Freiburg, Germany; Fax +49-7 61-2 03-61 00; E-mail: andreas@gansaeuer.de
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Publikationsdatum:
31. Dezember 2000 (online)

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Novel aspects of titanocene catalysed 5-exo cyclizations have been investigated. A model for the diastereoselectivity of the process is proposed. The synthesis of preparatively important [n.3.0] bicyclic systems is established and a potentially useful catalytic approach to the synthesis of tetrahydrofuran systems is introduced.

catalysis - cyclization - diastereoselectivity - radical cyclization - titanium