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Issue 43, 2013
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Synthesis and Lewis acid properties of a ferrocene-based planar-chiral borenium cation

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Abstract

The first planar chiral ferrocenylborenium species (pR)-3+ is obtained in the enantiopure form by halide abstraction from the corresponding chloroborane adduct (pR)-2 using Krossing's salt. Competition experiments suggest that the Lewis acidity of (pR)-3+ is higher than that of B(C6F5)3 towards anions and slightly lower towards neutral Lewis bases. The ferrocenylborenium species (pR)-3+ is examined as a catalyst for the stereoselective hydrosilylation of ketones.

Graphical abstract: Synthesis and Lewis acid properties of a ferrocene-based planar-chiral borenium cation

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Publication details

The article was received on 28 Feb 2013, accepted on 26 Mar 2013 and first published on 26 Mar 2013


Article type: Communication
DOI: 10.1039/C3CC41556B
Citation: Chem. Commun., 2013,49, 4893-4895
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    Synthesis and Lewis acid properties of a ferrocene-based planar-chiral borenium cation

    J. Chen, R. A. Lalancette and F. Jäkle, Chem. Commun., 2013, 49, 4893
    DOI: 10.1039/C3CC41556B

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