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4. Influence of the medium self-organization on the catalytic activity of palladium nanoparticles stabilized by amphiphilic phosphonium salts in the Suzuki reaction

Author

Ibragimova A., Arkhipova D., Vagapova G., Ermolaev V., Galkina I., Nigmatullina L., Rizvanov I., Zakharova L., Milyukov V., Konovalov A., and Sinyashin O.

Subjects
bromoarenes, catalysis, cross-coupling reactions, aggregation, palladium nanoparticles, phosphonium salts
Abstract

© 2014 Springer Science+Business Media New York. The influence of the aggregation properties of the medium on the catalytic activity of palladium nanoparticles stabilized by amphiphilic phosphonium salts was demonstrated for the Suzuki coupling of bromoarenes and phenylboronic acid.

Published
2014

5. Effect of phosphonium ionic liquid/Pd ratio on the catalytic activity of palladium nanoparticles in Suzuki cross-coupling reaction.

Author

Arkhipova, D., Ermolaev, V., Miluykov, V., Gaynanova, G., Zakharova, L., Wagner, G., Oeckler, O., and Hey-Hawkins, E.

Subjects
*NANOPARTICLES, *SUZUKI reaction, *PALLADIUM, *IONIC liquids, *CATALYTIC activity, *PALLADIUM catalysts, *TRANSMISSION electron microscopy
Abstract

• Palladium nanoparticles (PdNPs) stabilized with phosphonium ionic liquid (PIL) effectively catalyze cross-coupling reaction of 1,3,5-tribromobenzene and phenylboronic acid • PIL/Pd ratio influences on catalytic activity of PdNPs • Transmission electron microscopy (TEM) and Dynamic light scattering (DLS) methods were used for catalytic system characterization Phosphonium salts were synthesized and used as support for palladium nanoparticles. It was demonstrated that the catalytic behavior of palladium nanoparticles in Suzuki cross-coupling reaction is determined by the ratio of the phosphonium ionic liquid to palladium source and the nature of the stabilizer. Transition electron microscopy and dynamic light scattering techniques allowed to determine the most effective range of stabilizer concentration in the reaction media. The image demonstrates how Pd nanoparticles descend to catalytic deactivation. Image, graphical abstract [ABSTRACT FROM AUTHOR]

Published
2020
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6. Synthesis, characterization, and application of phosphonium ionic liquids.

Author

Arkhipova, D. M., Ermolaev, V. V., Miluykov, V. A., and Sinyashin, O. G.

Subjects
*CHEMICAL synthesis, *PHOSPHONIUM compounds, *IONIC liquids, *PALLADIUM catalysts, *ELECTROCHEMISTRY
Abstract

Phosphonium salts containing sterically demand head group are particular subclass of ionic liquids that have potentially broad application in both academia and industry. The synthesis, physical chemical properties, and application in stabilization of palladium nanoparticles and in electrochemistry are briefly reviewed. [ABSTRACT FROM PUBLISHER]

Published
2016
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