Is There a Radical Intermediate in the (salen)Mn-Catalyzed Epoxidation of Alkenes?

For the direct epoxidation of alkenes radical intermediates play no role. Instead investigations with the radicals traps 1a–c indicate that manganaoxetane intermediates are present. Radicals can form from the latter, particularly in the case of sterically crowded oxetanes, by homolytic of the MnC b...

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Veröffentlicht in:	Angewandte Chemie International Edition 1997-09, Vol.36 (16), p.1723-1725
Hauptverfasser:	Linde, Christian, Arnold, Moritz, Åkermark, Björn, Norrby, Per-Ola
Format:	Artikel
Sprache:	eng
Schlagworte:	epoxidations manganese oxetanes oxidations radicals
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Beschreibung
Zusammenfassung:	For the direct epoxidation of alkenes radical intermediates play no role. Instead investigations with the radicals traps 1a–c indicate that manganaoxetane intermediates are present. Radicals can form from the latter, particularly in the case of sterically crowded oxetanes, by homolytic of the MnC bond.
ISSN:	0570-0833 1521-3773
DOI:	10.1002/anie.199717231