TY - JOUR
T1 - A new recyclable Pd catalyst supported on vertically aligned carbon nanotubes for microwaves-assisted Heck reactions
AU - Janowska, Izabela
AU - Chizari, Kambiz
AU - Olivier, Jean Hubert
AU - Ziessel, Raymond
AU - Ledoux, Marc Jacques
AU - Pham-Huu, Cuong
PY - 2011/7/1
Y1 - 2011/7/1
N2 - Palladium supported on vertically aligned multi-walled carbon nanotubes (Pd/VA-CNTs) is used as catalyst for the C-C coupling reactions of p-iodonitrobenzene with styrene and ethyl acrylate under microwaves irradiation. Pd/VA-CNTs catalyst exhibits higher activity compared to Pd supported on activated charcoal, under the same reaction conditions. Due to the microwaves irradiation, the kinetics of the reaction is strongly accelerated compared to that obtained with a traditional heating mode. The macroscopic form of aligned CNTs support allows an easy recovery of the catalyst, avoiding a costly post-reaction filtration. In addition, the interaction between the active phase and the support leads to the negligible leaching of palladium during recycling tests. The observed results indicate that Pd/CNTs is a recyclable and stable heterogeneous catalytic system.
AB - Palladium supported on vertically aligned multi-walled carbon nanotubes (Pd/VA-CNTs) is used as catalyst for the C-C coupling reactions of p-iodonitrobenzene with styrene and ethyl acrylate under microwaves irradiation. Pd/VA-CNTs catalyst exhibits higher activity compared to Pd supported on activated charcoal, under the same reaction conditions. Due to the microwaves irradiation, the kinetics of the reaction is strongly accelerated compared to that obtained with a traditional heating mode. The macroscopic form of aligned CNTs support allows an easy recovery of the catalyst, avoiding a costly post-reaction filtration. In addition, the interaction between the active phase and the support leads to the negligible leaching of palladium during recycling tests. The observed results indicate that Pd/CNTs is a recyclable and stable heterogeneous catalytic system.
KW - Aligned carbon nanotubes
KW - Heck coupling
KW - Heterogeneous catalysis
KW - Microwaves
KW - Palladium
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U2 - 10.1016/j.crci.2011.04.007
DO - 10.1016/j.crci.2011.04.007
M3 - Article
AN - SCOPUS:79961028992
VL - 14
SP - 663
EP - 670
JO - Comptes Rendus Chimie
JF - Comptes Rendus Chimie
SN - 1631-0748
IS - 7-8
ER -