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Issue 32, 2016
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A Cu(II) MOF with a flexible bifunctionalised terpyridine as an efficient catalyst for the single-pot hydrocarboxylation of cyclohexane to carboxylic acid in water/ionic liquid medium

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Abstract

The copper(II) metal–organic framework (MOF) [Cu(η-1κN,N′,N′′:2κO,O′-L)(NO3)]n (1) [L = 4-((4-([2,2′:6′,2′′-terpyridin]-4′-yl)benzyl)oxy)benzoate] has been synthesized from a flexible bifunctionalised terpyridine species (HL). It was characterized by elemental, FT-IR, powder and single crystal X-ray diffraction analyses. Single crystal X-ray crystallography of 1 shows a 1D polymeric architecture, whose topological analysis illustrates a uninodal (2)-connected net having topological type 2C1. 1 shows good catalytic activity and selectivity towards the hydrocarboxylation of cyclohexane to cyclohexanecarboxylic acid in water/acetonitrile or water/ionic liquid [BMPyr][NTf2] [BMPyr = 1-butyl-1 methylpyrrolidinium; NTf2 = bis(trifluoromethanesulfonyl)imide] medium. It can be recycled and reused without any significant loss of catalytic efficiency. This study provides the first example of an efficient alkane hydrocarboxylation to carboxylic acid, in an ionic liquid and under mild conditions.

Graphical abstract: A Cu(ii) MOF with a flexible bifunctionalised terpyridine as an efficient catalyst for the single-pot hydrocarboxylation of cyclohexane to carboxylic acid in water/ionic liquid medium

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Publication details

The article was received on 11 May 2016, accepted on 18 Jul 2016 and first published on 18 Jul 2016


Article type: Paper
DOI: 10.1039/C6DT01852A
Citation: Dalton Trans., 2016,45, 12779-12789
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    A Cu(II) MOF with a flexible bifunctionalised terpyridine as an efficient catalyst for the single-pot hydrocarboxylation of cyclohexane to carboxylic acid in water/ionic liquid medium

    A. Paul, A. P. C. Ribeiro, A. Karmakar, M. F. C. Guedes da Silva and A. J. L. Pombeiro, Dalton Trans., 2016, 45, 12779
    DOI: 10.1039/C6DT01852A

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