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Klimova, Elena I.; Klimova, T. P.; García, Maribel Osorio; López, Eduardo A. Vázquez; Toledano, Cecilio Álvarez; Toscano, Rubén A.; Ramirez, L. Ruiz

doi:10.1023/a:1011375613460

Cited by 8 publications

(7 citation statements)

References 8 publications

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“…These were obtained according to the known procedure [12] by reactions of the enones 1a-f and 3a-f, respectively, with hydrazine hydrate in ethanol. The reaction products that precipitated (2a-f and 4a-f) were collected by filtration, washed with ethanol and dried in vacuo.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of ferrocenylpyrazole derivatives

Klimova

López

Klimova

et al. 2005

Journal of Heterocyclic Chemistry

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Section: Methodsmentioning

confidence: 99%

Synthesis of ferrocenylpyrazole derivatives

Klimova

López

Klimova

et al. 2005

Journal of Heterocyclic Chemistry

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“…Taking into account the key role of the pore size and distribution of the support that affects both the metal dispersion and the diffusion of the voluminous molecules fed, many research groups have investigated a family denoted as MCM-41-type compounds [18][19][20][21][22][23][24]. This family of mesoporous MCM-41 materials has attractive properties, such as uniform pore size distribution, high surface area, and good stability [25,26].…”

Section: Introductionmentioning

confidence: 99%

Nanosized Pd/Pt and Pd/Rh Catalysts for Naphthalene Hydrogenation and Hydrogenolysis/Ring-opening

et al. 2006

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Pd/Rh and Pd/Pt catalysts supported on two different mesoporous materials -a Zr-doped MCM-41-type silica [Si/Zr = 5 w/w (SiZr)] and a commercial silica-alumina [Si/Al = 40:60 w/w (SiAl)] -were prepared by incipient wetness impregnation using nanosized suspensions of alloy particles prepared by polyol-mediated synthesis in diethylene glycol (DEG). The catalytic behaviour of these catalysts was investigated in the hydrogenation and hydrogenolysis/ring-opening of naphthalene at 6.0 MPa, by checking the role of both the main reaction conditions (temperature, contact time and H 2 /naphthalene molar ratio) and increasing amounts of dibenzothiophene (DBT). The catalysts supported on SiAl showed higher activity than catalysts supported on SiZr, thus suggesting that activity is favoured by higher acidity of the support and/or higher interaction of the nanosized metal particles with the support. While using the SiZr support, weaker metal-support interactions took place by forming catalysts with bigger metal and/or metal oxide particles. Besides, the catalyst with lowest noble-metal content (0.3 wt.%) (SiAl-0.3Pd/Pt-5) had the greatest acidity and metal surface and, consequently, the highest activity. Furthermore, it exhibited a good thiotolerance in presence of increasing amounts of DBT in the feed, thus maintaining a high catalytic activity in the hydrogenation of naphthalene, although with decreased yield in trans-and cis-decalin (decahydronaphthalene or DeHN) and high-molecular-weight compounds (H.M.W.), with a corresponding increased yield in the partially hydrogenated tetralin (tetrahydronaphthalene or TeHN).

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“…Ferrocene derivatives containing one or more heterocyclic substituents are useful precursors for the synthesis of new metallocene derivatives [2][3][4][5][6][7][8]. At the same time, they are also important because of their potential biological activity [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, they are also important because of their potential biological activity [4][5][6]. Recent publications support that combination of pharmacologically active N-heterocycles -among them pyrazolines and pyrazoles -with ferrocene moiety can result in favourable change of biological properties, often associated with decreased toxicity [6][7][8].…”

Section: Introductionmentioning

confidence: 99%