Spontaneous Metal-Free Transfer Hydrogenation of Iminoboranes with Ammonia Borane and Amine Boranes

Winner, L and Ewing, WC and Geetharani, K and Dellermann, T and Jouppi, B and Kupfer, T and Schäfer, M and Braunschweig, H (2018) Spontaneous Metal-Free Transfer Hydrogenation of Iminoboranes with Ammonia Borane and Amine Boranes. In: Angewandte Chemie - International Edition, 57 (38). pp. 12275-12279.

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Abstract

The first spontaneous, metal-free, room-temperature hydrogen transfer from ammonia borane to an iminoborane is reported. Mechanistic studies of the reaction indicate a concerted transfer of H+ and H− from donor to acceptor with an activation energy far below those of comparable concerted transfer hydrogenations. This reaction was employed in the syntheses and isolation of new B,N-disubstituted aminoboranes, a comparatively rare subset within the aminoborane family. This successful transfer hydrogenation to a highly dehydrogenated BN system may serve as a starting point for the design of new systems capable of reversible dehydrogenation/rehydrogenation.

Item Type:	Journal Article
Publication:	Angewandte Chemie - International Edition
Publisher:	Wiley-VCH Verlag
Additional Information:	The copyright for this article belongs to the Wiley-VCH Verlag.
Keywords:	Activation energy; Ammonia; Boron; Boron compounds; Hydrides, Aminoboranes; Ammonia borane; Hydrogen transfer; Iminoborane; Main-group elements; Mechanistic studies; Reversible dehydrogenation; Transfer hydrogenations, Hydrogenation
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	05 Aug 2022 10:33
Last Modified:	05 Aug 2022 10:33
URI:	https://eprints.iisc.ac.in/id/eprint/75376

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