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Org Lett. 2006 Feb 16;8(4):733-5.

An iron-containing ionic liquid as recyclable catalyst for aryl grignard cross-coupling of alkyl halides.

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  • 1Department of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, A-1060 Vienna, Austria.

Abstract

[reaction: see text] The ionic liquid butylmethylimidazolium tetrachloroferrate (bmim-FeCl(4)) was found to be a very effective and completely air stable catalyst for the biphasic Grignard cross-coupling with primary and secondary alkyl halides bearing beta-hydrogens. After simply decanting the product in the ethereal layer, the ionic liquid catalyst was successfully recycled four times.

PMID:
16468754
[PubMed]
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