Preformed π-Allyl Iron Complexes as Potent, Well-Defined Catalysts for the Allylic Substitution

Preformed π-Allyl Iron Complexes as Potent, Well-Defined Catalysts for the Allylic Substitution

Reanimation: Catalytically inactive π‐allyl iron complexes are “reanimated” upon addition of N‐heterocyclic carbene ligands such as 1,3‐dimesitylimidazolin‐2‐ylidene (SIMES). A comparison of stoichiometric and catalytic allylic alkylation reactions shows the π‐allyl mechanism to be active in this ca...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2009-01, Vol.48 (39), p.7251-7255
Hauptverfasser: Holzwarth, Michael, Dieskau, André, Tabassam, Misbah, Plietker, Bernd
Format: Artikel
Sprache:eng
Schlagworte:
allyl ligands
homogeneous catalysis
iron
nucleophiles
regioselectivity
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Zusammenfassung:Reanimation: Catalytically inactive π‐allyl iron complexes are “reanimated” upon addition of N‐heterocyclic carbene ligands such as 1,3‐dimesitylimidazolin‐2‐ylidene (SIMES). A comparison of stoichiometric and catalytic allylic alkylation reactions shows the π‐allyl mechanism to be active in this catalytic system.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200901930