Comparison of the catalytic performances of bridged bi-metallic and non-bridged mono-metallic PEPPSI type palladium N-heterocyclic carbene complexes

KARATAŞ M. O., ALICI B.

INORGANIC CHEMISTRY COMMUNICATIONS, cilt.116, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 116
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1016/j.inoche.2020.107890
  • Dergi Adı: INORGANIC CHEMISTRY COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chimica, DIALNET
  • Anahtar Kelimeler: N-heterocyclic carbenes, Bi-metallic complexes, Palladium, Catalysis, CROSS-COUPLING REACTIONS, SUZUKI-MIYAURA, NHC, PHENYLENE
  • İnönü Üniversitesi Adresli: Evet

Özet

Palladium-N-heterocyclic carbene complexes are widely investigated catalysts in cross-coupling reactions. However, studies about the catalytic activities of bridged bi-metallic complexes are quite rare. Therefore, in this study, anthracene-substituted one mono-metallic and one bridged bi-metallic PEPPSI-type Pd-NHC complexes were synthesized in order to compare their catalytic activities in Suzuki-Miyaura and Mizoroki-Heck reactions. Both complexes were fully characterized by H-1 and C-13 NMR, LC-MS, IR spectra and elemental analyses. The results of catalytic reactions clearly revealed that mono-metallic complex performs better catalytic activity than bi-metallic analogue in the use of same amount of palladium.