Synthesis and Catalytic Activity of Novel Benzimidazolinylidene-Ruthenium(II) Complexes

DEMİR DÜŞÜNCELİ S., ÖZDEMİR İ., Sahin O., Cetinkaya B., Buyukgungor O.

SYNLETT, no.3, pp.496-500, 2010 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2010
  • Doi Number: 10.1055/s-0029-1219187
  • Journal Name: SYNLETT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Current Chemical Reactions (CCR)
  • Page Numbers: pp.496-500
  • Keywords: ruthenium, benzimidazolinylidene complexes, N-heterocyclic carbene, C-H bond activation, arylation, N-HETEROCYCLIC-CARBENE, C-H BOND, CROSS-COUPLING REACTIONS, DIRECT ORTHO ARYLATION, PALLADIUM COMPLEXES, TRANSFER HYDROGENATION, AROMATIC-COMPOUNDS, PHOSPHINE OXIDES, ARYL, FUNCTIONALIZATION
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The reaction of [RuCl2(p-cymene)](2) with 1,3-dialkyl-benzimidazolium salts 1a-d in the presence of a small excess of cesium carbonate yields chelated eta(6)-arene, eta(1)-carbene ruthenium complexes 2a-d. All compounds were characterized by elemental analysis, NMR spectroscopy and the molecular structures of two of the complexes were determined by X-ray crystallography. The catalytic activity of RuCl2(eta(6)-arene, eta(1)-benzimidazolinylidene) complexes was evaluated in the direct arylation of 2-phenylpyridine with bromobenzene derivatives.