English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

One-pot dual catalysis for the hydrogenation of heteroarenes and arenes

MPS-Authors
/persons/resource/persons245022

Chatterjee,  Basujit
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

/persons/resource/persons237767

Bordet,  Alexis
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

/persons/resource/persons58749

Leitner,  Walter
Research Department Leitner, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;
Institut für Technische Chemie und Makromolekulare Chemie, Rheinisch‐Westfälische Technische Hochschule Aachen, Worringer Weg 1, 52074 Aachen, Germany;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Chatterjee, B., Kalsi, D., Kaithal, A., Bordet, A., Leitner, W., & Gunanathan, C. (2020). One-pot dual catalysis for the hydrogenation of heteroarenes and arenes. Catalysis Science & Technology, 10(15), 5163-5170. doi:10.1039/d0cy00928h.


Cite as: http://hdl.handle.net/21.11116/0000-0007-8530-C
Abstract
A simple dinuclear monohydrido bridged ruthenium complex [{(eta(6)-p-cymene)RuCl}(2)(mu-H-mu-Cl)] acts as an efficient and selective catalyst for the hydrogenation of various heteroarenes and arenes. The nature of the catalytically active species was investigated using a combination of techniques includingin situreaction monitoring, kinetic studies, quantitative poisoning experiments and electron microscopy, evidencing a dual reactivity. The results suggest that the hydrogenation of heteroarenes proceedsviamolecular catalysis. In particular, monitoring the reaction progress by NMR spectroscopy indicates that [{(eta(6)-p-cymene)RuCl}(2)(mu-H-mu-Cl)] is transformed into monomeric ruthenium intermediates, which upon subsequent activation of dihydrogen and hydride transfer accomplish the hydrogenation of heteroarenes under homogeneous conditions. In contrast, carbocyclic aryl motifs are hydrogenatedviaa heterogeneous pathway, byin situgenerated ruthenium nanoparticles. Remarkably, these hydrogenation reactions can be performed using molecular hydrogen under solvent-free conditions or with 1,4-dioxane, and thus give access to a broad range of saturated heterocycles and carbocycles while generating no waste.