Butylene linked palladium N-heterocyclic carbene complexes: Synthesis and catalytic properties

DEMIR S., ÖZDEMİR İ., Arslan H., VanDerveer D.

JOURNAL OF ORGANOMETALLIC CHEMISTRY, cilt.696, sa.13, ss.2589-2593, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 696 Sayı: 13
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.jorganchem.2011.03.040
  • Dergi Adı: JOURNAL OF ORGANOMETALLIC CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2589-2593
  • Anahtar Kelimeler: Chelating N-heterocyclic carbene, Palladium, Arylation, Benzothiazole, CROSS-COUPLING REACTIONS, DIRECT ARYLATION, C-C, GOLD(I) COMPLEXES, ARYL CHLORIDES, BOND FORMATION, BROMIDES, HECK, RHODIUM, LIGAND
  • İnönü Üniversitesi Adresli: Evet

Özet

New bis(NHC)-Pd complexes were synthesized and characterized by elemental analysis, H-1 NMR, C-13 NMR, and IR spectroscopy. The reaction of Pd(OAc)(2) and bis(benzimidazolium) salts in DMSO gave the monomeric palladium complex in which the N-heterocyclic carbene was bound to the metal centre. The crystal and molecular structure of the cis-dibromo{1,1'-di[2,3,4,5,6-pentamethylbenzyl]-3,3'-butylene-dibenzimidazol-2,2'-diylidene}-palladium(II) complex was determined by single-crystal X-ray diffraction. The activity of the Pd(II) complexes in the direct arylation of benzothiazole with arylbromides was investigated. A preliminary catalytic study showed that these bis(NHC)-Pd complexes were highly active in the direct arylation of benzothiazole with arylbromides. (C) 2011 Elsevier B.V. All rights reserved.