Novel N-heterocyclic-carbene-rhodium complexes as hydrosilylation catalysts

YIGIT M., Ozdemir I., CETINKAYA B., CETINKAYA E.

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, vol.241, pp.88-92, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 241
  • Publication Date: 2005
  • Doi Number: 10.1016/j.molcata.2005.07.012
  • Journal Name: JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.88-92
  • Keywords: perhydrobenzimidazolin-2-ylidene, imidazolin-2-ylidene N-heterocyclic carbene, hydrosilylation, rhodium, TRANSITION-METAL-COMPLEXES, SUZUKI-MIYAURA REACTION, ASYMMETRIC HYDROSILYLATION, HOMOGENEOUS CATALYSIS, PHENYLBORONIC ACID, OXIDATIVE ADDITION, CRYSTAL-STRUCTURES, ARYL CHLORIDES, PALLADIUM, LIGANDS
  • Inonu University Affiliated: Yes

Abstract

Novel rhodium-1,3-dialkylperhydrobenzimidazolin-2-ylidene (2a,b) and 1,3-dialkylimidazolin-2-ylidene complexes (4a,b) have been prepared and characterized by C, H, N analysis, H-1 NMR and C-13 NMR. Triethylsilane reacts with acetophenone derivatives in the presence of catalytic amount of the new rhodium(I)-carbene complexes, RhCl(COD)(1,3-dialkylperhydrobenzimidazolin-2-ylidene) or RhCl(COD)(1,3-dialkylimidazolin-2-ylidene) to give the corresponding silylethers in good yields (63-99%). (c) 2005 Elsevier B.V. All rights reserved.