Synthesis, characterization and catalytic activity of new bis(N-2,6-diphenylphenol-R-salicylaldiminato)Pd(II) complexes in Suzuki-Miyaura and CO2 fixation reactions

Oncel N., Kasumov V. T., ŞAHİN E., Ulusoy M.

JOURNAL OF ORGANOMETALLIC CHEMISTRY, cilt.811, ss.81-90, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 811
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.jorganchem.2016.03.024
  • Dergi Adı: JOURNAL OF ORGANOMETALLIC CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.81-90
  • Anahtar Kelimeler: Bis(N-2,6-diphenylphenol-R-salicylideneiminato)Pd, Catalytic activity, Suzuki reaction, CO2 fixation, Cyclic carbonate, CROSS-COUPLING REACTIONS, TRANSITION-METAL-COMPLEXES, CARBON-DIOXIDE, COBALOXIME/ORGANOCOBALOXIME CATALYSTS, CYCLIC CARBONATE, EPOXIDES, LIGANDS, REACTIVITY, PD(II)
  • Atatürk Üniversitesi Adresli: Evet

Özet

A series of bulky N-2,6-diphenylphenol-R-salicylaldimines (HLx) and their corresponding bis(N-2,6-diphenylphenol-R-salicylaldiminato) Pd(II) complexes (X), where R = H (1), 3-OCH3 (2), 4-OCH3 (3), 5-OCH3 (4), 3-Me (5), 5-Me (6), 5-C(CH3)(3) (7), 3-C(CH3)(3) (8) and 3,5-di-C(CH3)(3) (9) have been synthesized. Their structures characterized by elemental analyses, IR, UV/vis, H-1 NMR and C-13 NMR spectroscopic techniques. X-ray crystallography shows that complex 3 crystallizes in the triclinic P-1space group with one trans-[PdL23] molecule and two acetic acid (C2H4O2) molecules in the unit cell. All X compounds are proved to be as efficient homogeneous catalysts for both Suzuki-Miyaura cross-coupling reactions of various aryl bromides and cyclic carbonates synthesis from CO2 and epoxides are reported under appropriate conditions (2 h, 100 degrees C and 1.6 MPa pressure) without use of phosphine ligands. (C) 2016 Elsevier B.V. All rights reserved.