Uncatalyzed Hydrogenation of First‐Row Main Group Multiple Bonds |
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| Authors: | Dr. Merle Arrowsmith Julian Böhnke Prof. Dr. Holger Braunschweig Dr. Mehmet Ali Celik Theresa Dellermann Kai Hammond |
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| Affiliation: | 1. http://www.braunschweiggroup.de;2. Institute for Inorganic Chemistry, Julius-Maximilians-Universit?t Würzburg, Würzburg, Germany;3. Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universit?t Würzburg, Würzburg, Germany |
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| Abstract: | Room temperature hydrogenation of an SIDep‐stabilized diboryne (SIDep=1,3‐bis(diethylphenyl)‐4,5‐dihydroimidazol‐2‐ylidene) and a cAAC‐supported diboracumulene (cAAC=1‐(2,6‐diisopropylphenyl)‐3,3,5,5‐tetramethylpyrrolidin‐2‐ylidene) provided the first selective route to the corresponding 1,2‐dihydrodiborenes. DFT calculations showed an overall exothermic (ΔG=19.4 kcal mol?1) two‐step asynchronous H2 addition mechanism proceeding via a bridging hydride. |
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| Keywords: | carbenes diborenes hydrogenation main-group chemistry reaction mechanism |
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