Phosphine-free cobalt catalyst precursors for the selective hydrogenation of olefins†
Pim
Puylaert, 
a
Andrea
Dell'Acqua,
a
Fatima
El Ouahabi,
a
Thierry
Roisnel,
b
Laurent
Lefort,
c
Sandra
Hinze,
a
Sergey
Tin
a
and
Johannes Gerardus
de Vries
*a
a
Andrea
Dell'Acqua,
a
Fatima
El Ouahabi,
a
Thierry
Roisnel,
b
Laurent
Lefort,
c
Sandra
Hinze,
a
Sergey
Tin
a
and
Johannes Gerardus
de Vries
*a
Abstract
Cobalt(II) complexes bearing phosphine-free tridentate NNS ligands were prepared. Depending on the ligand, dimeric or monomeric complexes were isolated. Monomeric Co(NNMeS)Cl2 selectively catalysed the hydrogenation of olefins in the presence of reducible moieties such as ketones. Further investigation showed that this complex functions as a nanoparticle precursor under the reaction conditions.
- This article is part of the themed collection: 2018 Catalysis Science & Technology HOT Articles
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