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Issue 14, 2011
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CuI complexes containing a multidentate and conformationally flexible dibenzylidene acetone ligand (dbathiophos): Application in catalytic alkene cyclopropanation

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Abstract

The synthesis and characterisation of a multidentate conformationally flexible ligand based on the dibenzylidene acetone core structure, dbathiophos (1), is described. Ligand 1 has a high affinity for cationic and neutral CuI species. Three unique CuI complexes (4–6) are reported showing that the ligand backbone of dbathiophos is hemilabile, and able to adopt different 1,4-dien-3-one conformational geometries around CuI. Complexes 4 and 6 both effectively catalyse the cyclopropanation of styrene with ethyl diazoacetate at low catalyst loadings (1 mol% Cu).

Graphical abstract: CuI complexes containing a multidentate and conformationally flexible dibenzylidene acetone ligand (dbathiophos): Application in catalytic alkene cyclopropanation

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Publication details

The article was received on 19 Nov 2010, accepted on 24 Jan 2011 and first published on 02 Mar 2011


Article type: Paper
DOI: 10.1039/C0DT01612H
Citation: Dalton Trans., 2011,40, 3695-3702
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    CuI complexes containing a multidentate and conformationally flexible dibenzylidene acetone ligand (dbathiophos): Application in catalytic alkene cyclopropanation

    A. G. Jarvis, A. C. Whitwood and I. J. S. Fairlamb, Dalton Trans., 2011, 40, 3695
    DOI: 10.1039/C0DT01612H

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