Article
Hydrogenation of Alkenes Catalyzed by Mn(I) Alkyl Complexes Bearing NHC Phosphine Ligands
ChemCatChem
— 2024 — Wiley
Key information
Authors:
Published in
11/25/2024
Abstract
An efficient additive free hydrogenation of alkenes with molecular hydrogen is described. The pre-catalyst is a well-defined bench stable Mn(I) alkyl complex bearing a NHC phosphine ligand. These reactions are environmentally benign and atom economic, implementing an inexpensive, earth abundant non-precious metal catalyst. The catalytic process is initiated by migratory insertion of a CO ligand into the Mn-alkyl bond to yield an acyl intermediate which undergoes rapid hydrogenolysis to form the active 16e Mn(I) hydride catalyst [Mn(PC-iPr)(CO)2(H)]. A range of mono- and disubstituted alkenes were efficiently converted into alkanes in good to excellent yields. The hydrogenation requires a reaction temperature of 60 °C. In all cases, a catalyst loading of 1 mol % and a hydrogen pressure of 50 bar was applied. A mechanism based on DFT calculations is presented which is supported by experimental studies.
Publication details
Authors in the community:
Luís Filipe Coelho Veiros
ist12434
Publication version
VoR - Version of Record
Publisher
Wiley
Title of the publication container
ChemCatChem
First page or article number
e202401172
Last page
e202401172
Volume
16
Issue
22
ISSN
1867-3899
WoS (Web of Science)
Fields of Science and Technology (FOS)
chemical-sciences - Chemical sciences
Publication language (ISO code)
eng - English
Rights type:
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Creative Commons license
CC-BY - CC-BY