Dalton Transactions
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straightforward synthesis of carboxylic acids irrespective of the
electronic nature of the functional groups. It does not generate
any toxic heavy metal ions or malodorous by-products; this
fact is important with respect to increasing environmental con-
cerns. The only by-product formed during the reaction is mole-
cular hydrogen. Furthermore, the remarkable feature of this
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Acknowledgements
This study was performed within the Interreg Euregio Meuse-
Rhine IV-A consortium “BioMiMedics” (2011–2014) financed
through generous contributions of the European Union
(through Interreg IV-A) and the government of North Rhine-
Westphalia (Germany). The authors would like to thank Ines
Bachmann-Rémy for the recording of NMR spectra and Dr
Walter Tillmann for the recording and discussion of the IR
spectra.
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