Evaluation of Cu(II) bzimpy complexes by ¹H-NMR and catalytic activities

Abstract

Copper(II) complexes (3a–d and 4a–d) containing tridentate 2,6-bis(benzimidazole-2-yl) pyridine (bzimpy) were synthesized and characterized by ¹H-NMR, elemental analysis, IR, UV and mass spectroscopy. These complexes were tested as catalysts in transfer hydrogenation (TH). The effects of wingtip substituents on bzimpy ligand to the TH activity of Cu(II) complexes were investigated. Among the catalysts, complex 4d with sterically bulky bzimpy ligand showed the highest catalytic activity in this transformation.

Graphical Abstract

Keywords:

• Bzimpy
• copper(II) complexes
• NMR
• transfer hydrogenation

Disclosure statement

No potential conflict of interest was reported by the author.

Additional information

Funding

This study was funded by Ege University Scientific Research Projects Coordinatorship (EGE-BAP) with project code: 17-FEN-075. The author is indebted to Ege University for the financial supports.