Metal‐Free Dehydrogenation of Amine‐Boranes by Tunable N‐Heterocyclic Iminoboranes |
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| Authors: | Melanie W Lui Nathan R Paisley Dr Robert McDonald Dr Michael J Ferguson Prof Dr Eric Rivard |
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| Institution: | Department of Chemistry, University of Alberta, Edmonton, AB, Canada |
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| Abstract: | We report the synthesis of structurally tunable boron complexes supported by N‐heterocyclic imine ligands IPr=N?BR2 (IPr=(HCNDipp)2C], Dipp=2,6‐iPr2C6H3, R=Cl and/or Ph) that have the ability to abstract dihydrogen from amine‐boranes, and instigate their dehydrocoupling. In one instance, mild heating of the hydrogen addition product IPr=NH?B(Ph)HCl releases H2 to regenerate the starting N‐heterocyclic iminoborane; accordingly IPr=N?B(Ph)Cl can be used as a metal‐free catalyst to promote the dehydrocoupling of MeNH2 ? BH3 to yield N‐methylaminoborane oligomers MeNH‐BH2]x. |
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| Keywords: | boranes homogeneous catalysis main-group elements N-heterocyclic imines transfer dehydrogenation |
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