5-Nitrobenzimidazole containing Pd(II) catalyzed C-C cross-coupling reactions: The effect of the N-substituent of the benzimidazole structure on catalyst activity

BULDURUN K., ÖZDEMİR İ.

JOURNAL OF MOLECULAR STRUCTURE, cilt.1192, ss.172-177, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 1192
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1016/j.molstruc.2019.04.101
  • Dergi Adı: JOURNAL OF MOLECULAR STRUCTURE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.172-177
  • Anahtar Kelimeler: 5-Nitrobenzimidazole, Catalytic activity, Suzuki-Miyaura, Spectroscopy, SUZUKI-MIYAURA, EFFICIENT CATALYSTS, PALLADIUM COMPLEXES, HECK, LIGANDS, NANOPARTICLES, MIZOROKI, MONO
  • İnönü Üniversitesi Adresli: Evet

Özet

A series of Pd(II) complexes (1a-e) were successfully synthesized by reaction of N-substituted 5-nitrobenzimidazole with [PdCl2(CNCH3)(2)] in toluene under argon reflux condition. Their catalytic activity in the Suzuki-Miyaura and Mizoroki-Heck coupling reactions were investigated. All these complexes were characterized by elemental analysis, H-1 NMR, C-13 NMR and IR spectroscopy. The catalytic activities of N-substituted 5-nitrobenzimidazole palladium (II) complexes were screened in Mizoroki-Heck and Suzuki-Miyaura coupling reactions. The reactions were optimized for the most suitable temperature, solvent and base system. The Pd(II) complexes exhibited good catalytic activity at the Mizoroki-Heck reaction. Additionally, the Suzuki-Miyaura showed relatively excellent activity at the coupling reaction. (C) 2019 Elsevier B.V. All rights reserved.