Dipalladium(I) complexes of ortho- and para-functionalized 1,3-bis(aryl)triazenide ligands: Synthesis, structure and catalytic activity

• Published in: Inorganica Chimica Acta 2019-05, Vol.490, p.130-138
• Main Authors: Correa-Ayala, Erick, Campos-Alvarado, Carlos, Chávez, Daniel, Hernández-Ortega, Simón, Morales-Morales, David, Miranda-Soto, Valentín, Parra-Hake, Miguel
• Format: Article
• Language: English
• Subjects: Aromatic compounds; Catalysis; Catalytic activity; Chemical synthesis; Couplings; Cross coupling reactions; Crystal structure; Crystals; Heck couplings; Pd(I) complexes; Suzuki-Miyaura couplings; Triazenide ligands; X-ray diffraction
• ISSN: 0020-1693; 1873-3255
• DOI: 10.1016/j.ica.2019.03.004

The series of dipalladium(I) complexes [Pd{1-[2′-(methoxycarbonyl)phenyl]-3-[4′-X-phenyl]triazenide}]2 [(X = F (4), Cl (5), Br (6)] were synthesized and used as efficient catalysts in Heck and Suzuki-Miyaura couplings of different p-substituted bromobenzenes. [Display omitted] •Triazenide Pd(I) dinuclear complexes were obtained.•The Pd(I) dinuclear complexes are efficient catalysts in Heck and Suzuki couplings.•Substituents in the triazenide ligands are relevant in their catalytic activity. The synthesis and characterization of a series dipalladium(I) complexes of formulae [Pd{1-[2′-(methoxycarbonyl)phenyl]-3-[4′-X-phenyl]triazenide}]2 [X = F (4), Cl (5), Br (6)] are reported. The crystal structure of complex 4 was determined by X-ray diffraction studies. The previously reported dipalladium(I) 1–3 as well as the new complexes 4–6 were used as catalysts in the Heck and Suzuki couplings of different p-substituted bromobenzenes.