Novel ruthenium(II)-N-heterocyclic carbene complexes; synthesis, characterization and catalytic application

YAŞAR S., KARACA E. Ö., Sahin C., ÖZDEMİR İ., ŞAHİN O., Buyukgungor O.

JOURNAL OF ORGANOMETALLIC CHEMISTRY, vol.789-790, pp.1-7, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 789-790
  • Publication Date: 2015
  • Doi Number: 10.1016/j.jorganchem.2015.04.012
  • Journal Name: JOURNAL OF ORGANOMETALLIC CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Index Chemicus (IC)
  • Page Numbers: pp.1-7
  • Keywords: Transfer hydrogenation reaction, N-heterocyclic carbene, Ruthenium-NHC complex, Silver, ASYMMETRIC TRANSFER HYDROGENATION, RUTHENIUM COMPLEXES, IRIDIUM COMPLEXES, TRANSFER REDUCTION, COUPLING REACTIONS, OLEFIN METATHESIS, METAL-COMPLEXES, ARYL CHLORIDES, KETONES, LIGANDS
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The synthesis of highly active ruthenium(II) catalyst based on N-heterocyclic carbene (NHC) bearing alkyl and aryl groups is reported. The complexes are easily handled in very good yields via synthesis of silver -NHC complexes and subsequent reaction with [RuCl2(p-cymene)](2) in dichloromethane (DCM) under N-2 condition. All new compounds were characterized by LC-MSMS, elemental analysis, NMR spectroscopy and X-ray diffraction. With the development of a more efficient catalytic system for transfer hydrogenation of aryl ketones and aldehydes in mind, the catalytic performance of the Ru-NHC complexes for transfer hydrogenation was investigated. (c) 2015 Elsevier B.V. All rights reserved.