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Organometallics. 2013 May 24;32(10):3053-3062.

Heterolytic H2 Cleavage and Catalytic Hydrogenation by an Iron Metallaboratrane.

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1
Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA.

Abstract

Reversible, heterolytic addition of H2 across an iron-boron bond in a ferraboratrane with formal hydride transfer to the boron gives iron-borohydrido-hydride complexes. These compounds catalyze the hydrogenation of alkenes and alkynes to the respective alkanes. Notably, the boron is capable of acting as a shuttle for hydride transfer to substrates. The results are interesting in the context of heterolytic substrate addition across metal-boron bonds in metallaboratranes and related systems, as well as metal-ligand bifunctional catalysis.

KEYWORDS:

Metallaboratrane; heterolytic dihydrogen activation; non-noble metal hydrogenation catalysis

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