Synthesis of cyclic diborenes with unprecedented cis-configuration

Philipp Bissinger; Holger Braunschweig; Mehmet Ali Celik; Christina Claes; Rian D. Dewhurst; Sebastian Endres; Hauke Kelch; Thomas Kramer; Ivo Krummenacher; Christoph Schneider

doi:10.1039/C5CC07103H

Synthesis of cyclic diborenes with unprecedented cis-configuration†

Philipp Bissinger,^a Holger Braunschweig,*^a Mehmet Ali Celik,^a Christina Claes,^a Rian D. Dewhurst,^a Sebastian Endres,^a Hauke Kelch,^a Thomas Kramer,^a Ivo Krummenacher^a and Christoph Schneider^a

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^a Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
E-mail: h.braunschweig@uni-wuerzburg.de

Abstract

The first examples of cis-configured diborenes – and the first cyclic diborenes – are isolated by taking advantage of stabilisation by chelating diphosphine ligands. The diborenes are prepared by a convenient one-pot reductive procedure that circumvents the need for a pre-formed base-adduct of the boron-containing precursor.

Chemical Communications

Synthesis of cyclic diborenes with unprecedented cis-configuration†

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Synthesis of cyclic diborenes with unprecedented cis-configuration

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