Base-free dehydrogenation of aqueous and neat formic acid with Iridium(III)Cp*(dipyridylamine) catalysts

Abstract : The selective dehydrogenation of formic acid by Iridium(III)Cp*(dipyridylamine) catalysts is reported. The electron enriched catalyst Ir6 led to the best performances enabling the base free dehydrogenation of aqueous and neat formic acid. In both cases the reaction was selective with no carbon monoxide detectable. The latent behavior of Ir6 was demonstrated which may be of practical utility. Experimental results suggest an outer-sphere interaction with the ligand.
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Shengdong Wang, Haiyun Huang, Thierry Roisnel, Christian Bruneau, Cedric Fischmeister. Base-free dehydrogenation of aqueous and neat formic acid with Iridium(III)Cp*(dipyridylamine) catalysts. ChemSusChem, ChemPubSoc Europe/Wiley, In press, ⟨10.1002/cssc.201802275⟩. ⟨hal-01903315⟩

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