Palladium PEPPSI complexes: Synthesis and catalytic activity on the Suzuki-Miyaura coupling reactions for aryl bromides at room temperature in aqueous media

touj N., GÜRBÜZ N., Hamdi N., YAŞAR S., ÖZDEMİR İ.

INORGANICA CHIMICA ACTA, vol.478, pp.187-194, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 478
  • Publication Date: 2018
  • Doi Number: 10.1016/j.ica.2018.04.018
  • Journal Name: INORGANICA CHIMICA ACTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.187-194
  • Keywords: Palladium N-heterocyclic carbene complex, Benzimidazole, Suzuki-Miyaura cross coupling, C-C bond formation, Aqueous media, N-HETEROCYCLIC CARBENES, (NHC)PD(ALLYL)CL NHC, RUTHENIUM CATALYSTS, EFFICIENT CATALYST, ORGANIC-CHEMISTRY, ARYLBORONIC ACIDS, PD NANOPARTICLES, WATER, AIR, PRECATALYST
  • Inonu University Affiliated: Yes

Abstract

A new series of palladium N-heterocyclic carbene complexes having methoxyethyl on the side chain (3a-d, 4a-e) have been synthesized and fully characterized by NMR, HRMS and IR. Next, the palladium-NHC-PEPPSI complexes 3a-e and 4a-e were used as catalyst in Suzuki-Miyaura coupling reactions were investigated for aryl bromides at room temperature in aqueous media. 3a-d and 4a-e complexes showed good catalytic activity for electron-donating or electron-drawing aryl bromides with arylboronic acid. Complex 4b exhibited higher activity compared to other analogues due to bearing more electronically donating NHC ligands. (C) 2018 Elsevier B.V. All rights reserved.