Lewis-Base-Induced Disproportionation of a Dialane

Alexander Hofmann; Anna Lamprecht; J Oscar C Jiménez-Halla; Tobias Tröster; Rian D Dewhurst; Carsten Lenczyk; Holger Braunschweig

doi:10.1002/chem.201802300

Lewis-Base-Induced Disproportionation of a Dialane

Chemistry. 2018 Aug 9;24(45):11795-11802. doi: 10.1002/chem.201802300. Epub 2018 Jul 18.

Authors

Alexander Hofmann¹, Anna Lamprecht¹, J Oscar C Jiménez-Halla², Tobias Tröster¹, Rian D Dewhurst¹, Carsten Lenczyk¹, Holger Braunschweig¹

Affiliations

¹ Institut für Anorganische Chemie, Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
² Departamento de Química, Universidad de Guanajuato, Noria Alta S/N, 36050, Guanajuato, Mexico.

PMID: 29920807
DOI: 10.1002/chem.201802300

Abstract

The reaction of a pentamethylcyclopentadienyl-substituted dialane with a variety of Lewis bases results in unexpected disproportionation of the dialane into Al^I and Al^III species. Use of a transition-metal Lewis base allows for the formation of metal-only Lewis pairs. Furthermore, the synthesis of a Lewis base bis-adduct was successful with the Lewis base 4-dimethylaminopyridine.

Keywords: Lewis base; aluminum; dialane; disproportionation; transition metals.