Browsing by Author "Hennessy, Elisabeth"

Now showing items 1-4 of 4

    • C-H Amination Catalysis from High-Spin Ferrous Complexes 

      Hennessy, Elisabeth Therese (2013-10-15)
      The C-H amination and olefin aziridination chemistry of iron supported by dipyrromethene ligands (RLAr, L=1,9-R2-5-aryldipyrromethene, R = Mes, 2,4,6-Ph3C6H2, tBu, Ad, 10-camphoryl, Ar = Mes, 2,4,6-Cl3C6H2) was explored. ...

    • Catalytic C−H Bond Amination from High-Spin Iron Imido Complexes 

      King, Evan R.; Hennessy, Elisabeth Therese; Betley, Theodore A (American Chemical Society (ACS), 2011)
      Dipyrromethene ligand scaffolds were synthesized bearing large aryl (2,4,6-Ph3C6H2, abbreviated Ar) or alkyl (tBu, adamantyl) flanking groups to afford three new disubstituted ligands (RL, 1,9-R2-5-mesityldipyrromethene, ...

    • Complex N-Heterocycle Synthesis via Iron-Catalyzed, Direct C-H Bond Amination 

      Hennessy, Elisabeth Therese; Betley, Theodore A (American Association for the Advancement of Science (AAAS), 2013)
      The manipulation of traditionally unreactive functional groups is of paramount importance in modern chemical synthesis. We have developed an iron-dipyrrinato catalyst that leverages the reactivity of iron-borne metal-ligand ...

    • Iron-mediated intermolecular N-group transfer chemistry with olefinic substrates 

      Hennessy, Elisabeth; Liu, Richard Y.; Iovan, Diana Alexandra; Duncan, Ryan A.; Betley, Theodore A (Royal Society of Chemistry (RSC), 2014)
      The dipyrrinato iron catalyst reacts with organic azides to generate a reactive, high-spin imido radical intermediate, distinct from nitrenoid or imido species commonly observed with low-spin transition metal complexes. ...