Construction of Linear and Branched Tetraboranes by 1,1- and 1,2-Diboration of Diborenes
Dr. Tom E. Stennett
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Search for more papers by this authorDr. Rüdiger Bertermann
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Search for more papers by this authorCorresponding Author
Prof. Dr. Holger Braunschweig
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Search for more papers by this authorDr. Tom E. Stennett
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Search for more papers by this authorDr. Rüdiger Bertermann
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Search for more papers by this authorCorresponding Author
Prof. Dr. Holger Braunschweig
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Institute for Sustainable Chemistry and Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97070 Würzburg, Germany
Search for more papers by this authorGraphical Abstract
Connect bor: Sterically unencumbered diborenes based on a benzylphosphine chelate undergo diboration reactions with bis(catecholato)diboron in the absence of a catalyst to yield tetraboranes.
Abstract
Sterically unencumbered diborenes based on a benzylphosphine chelate undergo diboration reactions with bis(catecholato)diboron in the absence of a catalyst to yield tetraboranes. The symmetrical diborenes studied undergo 1,2-diborations, whereas an unsymmetrical derivative was found to yield a triborylborane–phosphine adduct as the result of a formal 1,1-diboration. A related borylborylene compound also underwent a 1,2-diboration to produce a borylene–borane adduct.
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