Details
| Original language | English |
|---|---|
| Pages (from-to) | 39-45 |
| Number of pages | 7 |
| Journal | Applied Catalysis A: General |
| Volume | 455 |
| Publication status | Published - 30 Mar 2013 |
Abstract
A versatile and magnetically recoverable catalyst consisting of copper nanoparticles on silica coated maghemite nanoparticles (MagSilica ®) is presented. The catalyst has been prepared under mild conditions by fast reduction of anhydrous CuCl2 with lithium sand and a catalytic amount of DTBB (4,4'-di-tert-butylbiphenyl) as electron carrier, in the presence of the magnetic support. The catalyst has been fully characterized and its performance in different coupling and cycloaddition reactions of terminal alkynes has been studied. This new copper-based catalyst has shown to be very efficient and easily reusable in the Glaser alkyne dimerization reaction in THF, the multicomponent Huisgen 1,3-dipolar cycloaddition reaction in water and the three-component synthesis of propargylamines under solvent free conditions.
Keywords
- Alkyne, Copper nanoparticles, Coupling, Cycloaddition, Magnetic support
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemical Engineering(all)
- Process Chemistry and Technology
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In: Applied Catalysis A: General, Vol. 455, 30.03.2013, p. 39-45.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Copper nanoparticles supported on silica coated maghemite as versatile, magnetically recoverable and reusable catalyst for alkyne coupling and cycloaddition reactions
AU - Nador, F.
AU - Volpe, M. A.
AU - Alonso, F.
AU - Feldhoff, Armin
AU - Kirschning, Andreas
AU - Radivoy, G.
N1 - Funding information: This work was generously supported by the CONICET (Project no. PIP 738), ANPCyT (Project PICT-2010, no. 669) and SGCyT-UNS (Project PGI 24/Q044) from Argentina. F. N. also thanks the CONICET for a doctoral fellowship.
PY - 2013/3/30
Y1 - 2013/3/30
N2 - A versatile and magnetically recoverable catalyst consisting of copper nanoparticles on silica coated maghemite nanoparticles (MagSilica ®) is presented. The catalyst has been prepared under mild conditions by fast reduction of anhydrous CuCl2 with lithium sand and a catalytic amount of DTBB (4,4'-di-tert-butylbiphenyl) as electron carrier, in the presence of the magnetic support. The catalyst has been fully characterized and its performance in different coupling and cycloaddition reactions of terminal alkynes has been studied. This new copper-based catalyst has shown to be very efficient and easily reusable in the Glaser alkyne dimerization reaction in THF, the multicomponent Huisgen 1,3-dipolar cycloaddition reaction in water and the three-component synthesis of propargylamines under solvent free conditions.
AB - A versatile and magnetically recoverable catalyst consisting of copper nanoparticles on silica coated maghemite nanoparticles (MagSilica ®) is presented. The catalyst has been prepared under mild conditions by fast reduction of anhydrous CuCl2 with lithium sand and a catalytic amount of DTBB (4,4'-di-tert-butylbiphenyl) as electron carrier, in the presence of the magnetic support. The catalyst has been fully characterized and its performance in different coupling and cycloaddition reactions of terminal alkynes has been studied. This new copper-based catalyst has shown to be very efficient and easily reusable in the Glaser alkyne dimerization reaction in THF, the multicomponent Huisgen 1,3-dipolar cycloaddition reaction in water and the three-component synthesis of propargylamines under solvent free conditions.
KW - Alkyne
KW - Copper nanoparticles
KW - Coupling
KW - Cycloaddition
KW - Magnetic support
UR - http://www.scopus.com/inward/record.url?scp=84875971203&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2013.01.023
DO - 10.1016/j.apcata.2013.01.023
M3 - Article
AN - SCOPUS:84875971203
VL - 455
SP - 39
EP - 45
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
ER -