Zn2+ templating enables synthesis of redox ‘non-innocent’ diimine pyridine ligands with strong electron-withdrawing groups, allowing construction of iron complexes with multiple ligand-based reductions for application in redox flow batteries.
Ni(II) complexes supported by tridentate N^N − ^N diarylamido pincer-type ligands have been demonstrated to act as active catalysts in the carbon−carbon bond forming alkylation of azoles using unactivated alkyl halides. Here, we show that benzannulated phenanthridine-containing ligands can form homogeneous Ni(II) catalysts active with both benzoxazole and benzothiazole substrates. These precatalysts have been fully characterized in solution and the solid state, including by cyclic voltammetry.
The direct electrochemical hydrogenation of unsaturated organic compounds containing C=N and C=O bonds using glassy carbon electrodes and widely available Brønsted acids is demonstrated for a selection of α-ketoesters and...
The Pd-catalyzed Buchwald–Hartwig
amination of 2-bromo-1-iodobenzene
with (4-amino-2-tert-butyl)phenanthridine using 1,1′-bis(diphenylphosphino)ferrocene
(dppf) results in a side reaction involving the first reported example
of P–C bond activation of dppf and the templated formation
of an N∧N–∧P-supported
Pd(II) coordination complex. The full characterization of this complex
along with a proposed mechanism for a rare example of unstrained P–C(cyclopentadienyl)
bond activation are described.
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