The role of N-heterocyclic carbene substituents on ruthenium(II) complexes in the catalytic transfer hydrogenation of acetophenone

Authors

MUHAMMET EMİN GÜNAY
GÜLCAN GENÇAY ÇOĞAŞLIOĞLU

DOI

10.3906/kim-1506-15

Abstract

The novel ruthenium(II) complexes [RuCl$_{2}$(NHC)($p$-cymene)], \textbf{3a}--\textbf{e}, containing 1-alkyl-3-benzylimidazol-2-ylidene ligands were prepared. All synthesized compounds were characterized by NMR spectroscopy and elemental analyses. Ru(II)-NHC complexes were tested as catalysts for the transfer hydrogenation of acetophenone, showing modest to high activity in this reaction. The results revealed that efficiencies depend on the substituents of the benzene ring of the benzyl on the N atom of the NHC ring.

Keywords

N-heterocyclic carbene ligands, substituent effect, transfer hydrogenation, ruthenium complexes, silver-N-heterocyclic carbene complexes

First Page

296

Last Page

304

Recommended Citation

GÜNAY, MUHAMMET EMİN and ÇOĞAŞLIOĞLU, GÜLCAN GENÇAY (2016) "The role of N-heterocyclic carbene substituents on ruthenium(II) complexes in the catalytic transfer hydrogenation of acetophenone," Turkish Journal of Chemistry: Vol. 40: No. 2, Article 7. https://doi.org/10.3906/kim-1506-15
Available at: https://journals.tubitak.gov.tr/chem/vol40/iss2/7