Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Gustavo P. Romanelli"'
Autor:
John J. Alvear-Daza, Alexis Sosa, Diego M. Ruiz, Gustavo A. Pasquale, Julián A. Rengifo-Herrera, Gustavo P. Romanelli, Luis R. Pizzio
Publikováno v:
Catalysts, Vol 14, Iss 8, p 522 (2024)
A series of activated carbons (YMBC) obtained from yerba mate twig residue (YMT) were prepared by chemical (H3PO4) and thermal activation. Five materials were synthesized, varying the carbonization temperature (400–600 °C under N2 atmosphere) and
Externí odkaz:
https://doaj.org/article/5dfa5f5a67264daeaf766165b7b877eb
Autor:
Jeisson D. Corredor Montaña, Alix E. Loaiza, Gustavo P. Romanelli, Isabelle De Waele, Yeny A. Tobón, Jovanny A. Gómez Castaño
Publikováno v:
Química Nova, Vol 44, Iss 1, Pp 1-14 (2021)
In this study, the conformational behavior of N-benzyl-N-(furan-2-ylmethyl) acetamide in chloroform was addressed by using a combined experimental/theoretical strategy using NMR spectroscopy and quantum chemical calculations. The 1H and 13C one-dimen
Externí odkaz:
https://doaj.org/article/2112158e8e3e46e4b96fedc322887bc0
Autor:
Omar Portilla-Zúñiga, Óscar M. Bautista-Aguilera, José J. Martínez, Hugo Rojas, Mario A. Macías, Isabel Iriepa, Adrián Pérez-Redondo, Ángel Sathicq, Juan-Carlos Castillo, Gustavo P. Romanelli
Publikováno v:
Catalysts, Vol 13, Iss 3, p 603 (2023)
The Paal-Knorr reaction of acetonylacetone with primary amines catalyzed by CATAPAL 200 under conventional heating at 60 °C for 45 min afforded N-substituted pyrroles in 68–97% yields. The pyrrole 3g was studied by single-crystal and powder X-ray
Externí odkaz:
https://doaj.org/article/07a299ea2ec04543b12edbc2450d4251
Autor:
Edna X. Aguilera Palacios, Valeria Palermo, Angel G. Sathicq, Luis R. Pizzio, Gustavo P. Romanelli
Publikováno v:
Catalysts, Vol 12, Iss 10, p 1155 (2022)
A new series of composite materials (PLMTPA) based on tungstophosphoric acid (TPA) included in a polymeric matrix of polyacrylamide (PLM), with a TPA:PLM ratio of 20/80, 40/60, and 60/40, were synthesized and well characterized by FT-IR, XRD, 31P MAS
Externí odkaz:
https://doaj.org/article/aac80dfc6c564e5bb56373259aef73e5
Publikováno v:
Catalysts, Vol 11, Iss 2, p 291 (2021)
Over the past two decades, polyoxometalates (POM) have received considerable attention as solid catalysts, due to their unique physicochemical characteristics, since, first, they have very strong Bronsted acidity, approaching the region of a superaci
Externí odkaz:
https://doaj.org/article/ddf25d94ed794d1296e204972946519c
Autor:
Eliana Nope, Ángel G. Sathicq, José J. Martínez, Hugo A. Rojas, Rafael Luque, Gustavo P. Romanelli
Publikováno v:
Catalysts, Vol 10, Iss 1, p 70 (2020)
Lamellar double hydroxides (LDH) with double divalent cations were synthesized by the co-precipitation method and studied in the multicomponent synthesis of 4H-pyrans. The solids obtained were characterized by X-ray diffraction (XRD), infrared spectr
Externí odkaz:
https://doaj.org/article/8a87a3c2f5dc44cbb74f3582cc9d234a
Autor:
Paola M. Carraro, Bruna S. Goldani, Diego Alves, A. Gabriel Sathicq, Griselda A. Eimer, Gustavo P. Romanelli, Rafael Luque
Publikováno v:
Catalysts, Vol 9, Iss 2, p 136 (2019)
Zn/MCM-41 mesoporous materials have been prepared via classic wet impregnation, employing zinc nitrate as precursor and tested for activity and stability in the Friedel-Crafts alkylation of toluene with benzyl chloride under microwave irradiation and
Externí odkaz:
https://doaj.org/article/eeb057ee05184007845f3ded1b7a1825
Autor:
Omar Portilla-Zúñiga, Ángel Sathicq, José Martínez, Hugo Rojas, Eduardo De Geronimo, Rafael Luque, Gustavo P. Romanelli
Publikováno v:
Catalysts, Vol 8, Iss 10, p 419 (2018)
In this paper, we report the synthesis of Preyssler heteropolyacids supported on mesoporous alumina in order to obtain materials with acid–base properties. A series of pyrrole derivatives were synthesized using a suitable procedure under solvent-fr
Externí odkaz:
https://doaj.org/article/15db725f44f54ab88cb4021b316dd670
Autor:
Diego M. Ruiz, Gustavo P. Romanelli, Daniel O. Bennardi, Graciela T. Baronetti, Horacio J. Thomas, Juan C. Autino
Publikováno v:
ARKIVOC, Vol 2008, Iss 12, Pp 269-276 (2008)
Externí odkaz:
https://doaj.org/article/ab58c2849d104731be24152a11643f5c
Autor:
Daniel O. Bennardi, Gustavo P. Romanelli, Jorge L. Jios, Juan C. Autino, Graciela T. Baronetti, Horacio J. Thomas
Publikováno v:
ARKIVOC, Vol 2008, Iss 11, Pp 123-130 (2008)
Externí odkaz:
https://doaj.org/article/5bf29ebfcfa148fcab9402d2a3e22e44