Activities of New Dinuclear PEPPSI-Precatalysts Bearing Bis-benzimidazole Ligands in the Suzuki–Miyaura Coupling Reaction

Yılmaz Ü., Gök Y., Aktaş A.

CHEMISTRYSELECT, cilt.11, sa.15, ss.1-15, 2026 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 11 Sayı: 15
  • Basım Tarihi: 2026
  • Doi Numarası: 10.1002/slct.73286
  • Dergi Adı: CHEMISTRYSELECT
  • Derginin Tarandığı İndeksler: Scopus, Science Citation Index Expanded (SCI-EXPANDED), Chemical Abstracts Core
  • Sayfa Sayıları: ss.1-15
  • İnönü Üniversitesi Adresli: Evet

Özet

Seven new PEPPSI (Pyridine-Enhanced Precatalyst Preparation Stabilization and Initiation) type complex compounds containing bisbenzimidazole ligands were synthesized, and their structures were characterized by spectroscopic methods (1H, 13C-NMR, IR, HRMS). The catalytic activities of PEPPSI-precatalysts were tested in Suzuki-Miyaura cross-coupling reactions using phenylboronic acid, aryl bromides and aryl chlorides. It was observed that the precatalysts, having electron-dense benzimidazole ligands (compounds 1, 2), exhibited higher catalytic activity. In contrast, catalyst precursors having electron-poor benzimidazole ligands were found to have lower catalytic activity (compound 7).