Antioxidant Properties of Synthesis Nanometallic Pd-Ni@2- Mercaptoethanol as Effective Catalyst for Suzuki-Miyaura Reactions

(E-pub Ahead of Print)

Author(s): Khemais Said*, Ali Mesni, Ridha Ben Salem.

Journal Name: Letters in Organic Chemistry

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Abstract:

The palladium-catalyzed Suzuki coupling reaction is one of the most efficient strategies for constructing a carbon–carbon bond. In recent years, bimetallic catalysts have become candidates for the Suzuki coupling reaction. In this work, Pd-Ni@2-Mercaptoethanol nanoparticles were synthesized for the Suzuki-Miyaura cross-coupling of arylboronic acids with aryl bromides, in the N,N-dimethylformamide/water mixture catalyzed by Pd-Ni: A simple and efficient reaction performed in a solvent, without a ligand, and in open air. We found that the Suzuki-Miyaura reactions are remarkably fast (5 min), with high yields and the products are highly pure. The Pd-Ni@2-Mercaptoetanol nanoparticles have a narrow size distribution with a mean crystallite size of 10 nm. Radical scavenging activities of the complexes have been evaluated by using DPPH, DMPD+ and ABTS+ assays. IC50 values (μg/ml) of the complexes and standards on DPPH, DMPD+ and ABTS+ respectively follow the sequences.

Keywords: Nanoparticles, Suzuki C-C Coupling, ROS scavenging activities, Ultrasound, Arylboronic acids, Biaryls

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Article Details

(E-pub Ahead of Print)
DOI: 10.2174/1570178616666190319160151
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