A polymer supported palladium catalyst, obtained by copolymerization of Pd(AAEMA)<inf>2</inf> [AAEMA<sup>-</sup> = deprotonated form of 2-(acetoacetoxy) ethyl methacrylate] with ethyl methacrylate (co-monomer) and ethylene glycol dimethacrylate (cross-linker), exhibited excellent activity and selectivity for the hydrogenation of quinolines to 1,2,3,4-tetrahydroquinolines in the presence of NaBH<inf>4</inf> as hydrogen donor in water. Both the activity and selectivity could be maintained for at least seven reaction runs. No metal leaching into solution occurred during recycles. TEM analyzes carried out on the catalyst showed that the active species were supported palladium nanoparticles having a mean size of 3 nm, which did not aggregate with the recycles.

A polymer supported palladium(II) β-ketoesterate complex as active and recyclable pre-catalyst for selective reduction of quinolines in water with sodium borohydride / Dell'Anna, M.M., Romanazzi, G., Intini, S., Rizzuti, A., Leonelli, C., Piccinni, A.F., Mastrorilli, P.. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - ELETTRONICO. - 402:(2015), pp. 83-91. [10.1016/j.molcata.2015.03.013]

A polymer supported palladium(II) β-ketoesterate complex as active and recyclable pre-catalyst for selective reduction of quinolines in water with sodium borohydride

RIZZUTI, Antonino;LEONELLI, Cristina;
2015

Abstract

A polymer supported palladium catalyst, obtained by copolymerization of Pd(AAEMA)2 [AAEMA- = deprotonated form of 2-(acetoacetoxy) ethyl methacrylate] with ethyl methacrylate (co-monomer) and ethylene glycol dimethacrylate (cross-linker), exhibited excellent activity and selectivity for the hydrogenation of quinolines to 1,2,3,4-tetrahydroquinolines in the presence of NaBH4 as hydrogen donor in water. Both the activity and selectivity could be maintained for at least seven reaction runs. No metal leaching into solution occurred during recycles. TEM analyzes carried out on the catalyst showed that the active species were supported palladium nanoparticles having a mean size of 3 nm, which did not aggregate with the recycles.
2015
no
Inglese
AMSTERDAM
402
83
91
http://www.sciencedirect.com.scopeesprx.elsevier.com/science/article/pii/S138111691500117X
Pd nanoparticles; Polymer supported; Quinoline transfer hydrogenation; Recyclable catalyst; Water solvent; Catalysis; Physical and Theoretical Chemistry; Process Chemistry and Technology
The paper represents a fruitful collaboration between the UNIMORE and POLIBA. The two research groups have been collaborating on the morphological and chemical characterization of catalysts for organic synthesis for over then 25 years. This particular papers reports on catalytic reactions under extremely reducing conditions which could compromise the surface morphology on the catalyst.
partially_open
info:eu-repo/semantics/article
Contributo su RIVISTA::Articolo su rivista
262
A polymer supported palladium(II) β-ketoesterate complex as active and recyclable pre-catalyst for selective reduction of quinolines in water with sodium borohydride / Dell'Anna, M.M., Romanazzi, G., Intini, S., Rizzuti, A., Leonelli, C., Piccinni, A.F., Mastrorilli, P.. - In: JOURNAL OF MOLECULAR CATALYSIS. A: CHEMICAL. - ISSN 1381-1169. - ELETTRONICO. - 402:(2015), pp. 83-91. [10.1016/j.molcata.2015.03.013]
Dell'Anna, Maria Michela; Romanazzi, Giuseppe; Intini, Simona; Rizzuti, Antonino; Leonelli, Cristina; Piccinni, Alberto Ferruccio; Mastrorilli, Piero...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1106449
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