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Gas phase imidazole methylation on zeolites and HPA/SiO2: Study of acid site requirements and catalyst deactivation
(Elsevier Inc, 2013-07)
The gas-phase alkylation of imidazole with methanol was studied at 523 K on solid acids such as HPA/SiO2 and zeolites HMCM22, HBEA, NaY, ZnY and HY. The nature, density and strength of acid sites were determined by temperature ...
Characterization and catalytic activity of 2,6-dichlorophenyl substituted iron(III) porphyrin supported on silica gel and imidazole propyl gel
(Elsevier B.V., 1997-03-07)
In this work we have made use of the study of the interaction between Fe(TDCPP)(+) and the axial ligands OH- and imidazole in order to help characterize the heterogenized catalysts Fe(TDCPP)SG and Fe(TDCPP)IPG through ...
Characterization and catalytic activity of 2,6-dichlorophenyl substituted iron(III) porphyrin supported on silica gel and imidazole propyl gel
(Elsevier B.V., 1997-03-07)
In this work we have made use of the study of the interaction between Fe(TDCPP)(+) and the axial ligands OH- and imidazole in order to help characterize the heterogenized catalysts Fe(TDCPP)SG and Fe(TDCPP)IPG through ...
A convenient synthetic route for alkynylselenides from alkynyl bromides and diaryl diselenides employing copper(I)/imidazole as novel catalyst system
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
A mild, convenient, and effective strategy is developed for the synthesis of alkynyl selenides from alkynyl bromides and respective diselenides using Cul/imidazole as a novel catalyst system with Mg as additive. The Procedure ...
Catalyst recycling in the epoxidation of alkenes catalyzed by MoO2(acac)(2) through precipitation with poly(ethylene oxide)
(Elsevier Science BvAmsterdamHolanda, 2002)
Synthesis of N-aryl imidazoles catalyzed by copper nanoparticles on nanosized silica-coated maghemite
(Elsevier, 2014-04-05)
A magnetically recoverable catalyst consisting of copper nanoparticles (CuNPs) on nanosized silicacoated maghemite is presented. The catalyst has been prepared under mild conditions by mixing the magnetic support with a ...
Study of the catalytical intermediates of metalloporphyrins supported on imidazole propyl gel
(Elsevier B.V., 1997-03-14)
In this work, the catalytic intermediates for Fe(TPP)(+), Fe(TDCPP)(+), Fe(TFPP)(+), Mn(TPP)(+) and Mn(TDCPP)(+) supported on imidazole propyl gel with PhIO were studied by UV-Vis spectrophotometry. For Fe(TPP)+ and Fe(TFPP)+ ...
Study of the catalytical intermediates of metalloporphyrins supported on imidazole propyl gel
(Elsevier B.V., 1997-03-14)
In this work, the catalytic intermediates for Fe(TPP)(+), Fe(TDCPP)(+), Fe(TFPP)(+), Mn(TPP)(+) and Mn(TDCPP)(+) supported on imidazole propyl gel with PhIO were studied by UV-Vis spectrophotometry. For Fe(TPP)+ and Fe(TFPP)+ ...
Improved catalysis of Morita-Baylis-Hillman reaction. The strong synergic effect using both an imidazolic ionic liquid and a temperature
(Pergamon-elsevier Science LtdOxfordInglaterra, 2009)