Synthesis, characterization and catalytic activity of N-heterocyclic carbene ligated Schiff base palladacycles
INORGANICA CHIMICA ACTA, cilt.522, 2021 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 522
- Basım Tarihi: 2021
- Doi Numarası: 10.1016/j.ica.2021.120360
- Dergi Adı: INORGANICA CHIMICA ACTA
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core
- Anahtar Kelimeler: Imine-palladacycle, N-heterocyclic carbene, Schiff base, Imidazol-2-ylidene, Catalysis, Suzuki?Miyaura cross-coupling reaction, CROSS-COUPLING REACTIONS, SUZUKI-MIYAURA REACTIONS, CYCLOPALLADATED COMPLEXES, EFFICIENT CATALYSTS, CRYSTAL-STRUCTURE, TERDENTATE C,N,N, ARYL CHLORIDES, PD-II, PALLADIUM, LIGANDS
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
A series of N-heterocyclic carbene (NHC) ligated Schiff base palladacycles were synthesized by the reaction of ?-acetato-bridged Schiff base palladacycles (PdL1-2) with imidazolium salts (a-c). The new NHC ligated palladacycles were fully characterized using 1H NMR, 13C NMR, infrared spectroscopy, MS analysis, and single-crystal X-ray diffraction for one complex (PdL1). Further exploration of the catalytic application of the palladacycles for Suzuki-Miyaura cross-coupling reactions of aryl bromides with phenylboronic acid was carried out. It was determined that the new dimeric imine-palladacycle (PdL2) exhibits the highest catalytic activity among the coupling compounds in this study.