Issue 45, 2010
From the journal:

Chemical Communications

Intramolecular heterolytic dihydrogen cleavage by a bifunctional frustrated pyrazolylborane Lewis pair†‡

Eileen Theuergarten,a   Danny Schlüns,b   Jörg Grunenberg,b   Constantin G. Daniliuc,a   Peter G. Jonesa  and  Matthias Tamm*a  

* Corresponding authors

a Institut für Anorganische und Analytische Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, D-38106 Braunschweig, Germany
E-mail: m.tamm@tu-bs.de
Fax: +49 531-391-5309
Tel: +49 531-391-5387

b Institute für Organishce Chemie, Technische Universität Carolo-Wilhelmina, Hagenring 30, D-38106 Braunschweig, Germany

Abstract

The reaction of bis(pentafluorophenyl)borane, HB(C6F5)2, with 3,5-di-tert-butyl-1H-pyrazole (3) affords the zwitterionic pyrazolium-borate trans-5 and, after dehydrogenation by use of the frustrated carbene–borane Lewis pair 1/B(C6F5)3, the bifunctional pyrazolylborane 6, which is able to cleave dihydrogen heterolytically with the formation of a mixture of cis-5 and trans-5.

Graphical abstract: Intramolecular heterolytic dihydrogen cleavage by a bifunctional frustrated pyrazolylborane Lewis pair

  • This article is part of the themed collection: Hydrogen
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Article information

DOI
https://doi.org/10.1039/C0CC03474F
Article type
Communication
Submitted
25 Aug 2010
Accepted
06 Sep 2010
First published
18 Oct 2010

Chem. Commun., 2010,46, 8561-8563

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Intramolecular heterolytic dihydrogen cleavage by a bifunctional frustrated pyrazolylborane Lewis pair

E. Theuergarten, D. Schlüns, J. Grunenberg, C. G. Daniliuc, P. G. Jones and M. Tamm, Chem. Commun., 2010, 46, 8561 DOI: 10.1039/C0CC03474F

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