Issue 41, 2024

Aminophosphine PNH complexes of Mn(i), Fe(ii), and Co(ii) and evaluation of their activities in the transfer hydrogenation of nitriles

Abstract

A series of Mn(I), Fe(II), and Co(II) complexes with PNH ligands bearing secondary amine functionality were prepared and tested in the catalytic transfer hydrogenation of nitriles using ammonia borane as a hydrogen source. Among all tested complexes, a tetracoordinate Fe(II) bromide, (PNH)FeBr2, proved the most effective, representing a rare example of a highly active iron-based catalytic system for transfer hydrogenation reactions beyond carbonyl compounds and the first example of the iron catalyst for the transfer hydrogenation of nitriles to the corresponding primary amines. Mechanistic studies point out a metal–ligand cooperative mechanism enabled by the secondary amine moiety of the PNH ligand.

Graphical abstract: Aminophosphine PNH complexes of Mn(i), Fe(ii), and Co(ii) and evaluation of their activities in the transfer hydrogenation of nitriles

Supplementary files

Article information

Article type
Paper
Submitted
28 Aug 2024
Accepted
26 Sep 2024
First published
27 Sep 2024

Dalton Trans., 2024,53, 16861-16870

Aminophosphine PNH complexes of Mn(I), Fe(II), and Co(II) and evaluation of their activities in the transfer hydrogenation of nitriles

A. Slamova, A. Bizhanova, O. Talimonyuk, K. A. Gudun, S. Tussupbayev, A. Dmitrienko, A. Kassymbek, K. A. Lyssenko and A. Y. Khalimon, Dalton Trans., 2024, 53, 16861 DOI: 10.1039/D4DT02442G

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