Supported phosphine free bis-NHC palladium pincer complex: An efficient reusable nanocatalyst for Suzuki-Miyaura coupling reaction

A periodic mesoporous organosilica material functionalized with a bis-NHC palladium pincer complex was synthesized by sol-gel process. The resulting organic-inorganic hybrid nano material was characterized by XRD, TEM, SEM, TGA analysis, and BET measurements. The hybrid nanomaterial act as highly active catalysts for the Suzuki–Miyaura cross-coupling between deactivated aryl chlorides and phenylboronic acid under heterogeneous and aerobic conditions. The supported catalyst exhibited excellent activity and stability and it could be reused at least ten times without any significant loss of activity. Furthermore, the SEM image revealed that high order mesostructure of the recycled nanocatalyst. After ninth run, catalyst showed almost similar structure as compared to the fresh catalyst. ICP-AES detected no Pd contamination in the products, and leaching tests verified that the reaction was truly heterogeneous. © 2021 Elsevier B.V.

Authors
Rajabi F.1 , Burange A.S.2 , Voskressensky L.G. 3 , Luque R. 4
Journal
Molecular Catalysis
Publisher
Elsevier B.V.
Language
English
Status
Published
Link
External link
DOI
10.1016/j.mcat.2021.111928
Number
111928
Volume
515
Year
2021
Organizations
  • 1 Department of Chemistry, Payame Noor University, P. O. Box: 19395-3697, Tehran, Iran
  • 2 Department of Chemistry, Wilson College, Chowpatty, Mumbai, 400 007, India
  • 3 Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya st.Moscow 117198, Russian Federation
  • 4 Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, km 396, Cordoba, 14014, Spain
Keywords
Biaryls; Nanocatalyst; Pd-NHC; SBA-15; Suzuki-Miyaura
Date of creation
16.12.2021
Date of change
16.12.2021
Short link
https://repository.rudn.ru/en/records/article/record/76595/
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