Zobrazeno 1 - 10 of 97 pro vyhledávání: '"Gustavo P, Romanelli"'
2
Akademický článek
One-Pot Synthesis of Acidic Mesoporous Activated Carbon Obtained from Yerba Mate Twigs as Suitable Catalyst for the Production of Levulinic Ester Biofuel Additives
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
Zobrazit plný text záznamu
3
Akademický článek
INSIGHT INTO THE CONFORMATIONAL SPACE OF N-BENZYL-N-(FURAN-2-YLMETHYL)ACETAMIDE BY NMR SPECTROSCOPY AND DFT CALCULATIONS
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
Zobrazit plný text záznamu
4
Akademický článek
Synthesis of N-Substituted Pyrroles Catalyzed by Low-Cost and Commercially Available Aluminas
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
Zobrazit plný text záznamu
5
Akademický článek
Nanoestructuras de sílice, con diámetro y distribución de mesoporos variable, modificadas con ácido tungstofosfórico como catalizadores en la síntesis de quinoxalinas
Autor: Alexis Alberto Sosa, Gustavo Pablo Romanelli, Luis René Pizzio
Publikováno v: Revista Colombiana de Química, Vol 49, Iss 2, Pp 37-43 (2020)
Se sintetizaron catalizadores (SNX#WPA) basados en ácido tungstofosfórico, en soportes de nanoestructuras de sílice (SNX), con distribución de diámetros y tamaños de mesoporos variables. Las SNX se prepararon en medio de octano/agua, usando pol
Externí odkaz: https://doaj.org/article/205c2277d9134718b5237111a8743da4
Zobrazit plný text záznamu
6
Akademický článek
A New Series of Tungstophosphoric Acid-Polymeric Matrix Catalysts: Application in the Green Synthesis of 2-Benzazepines and Analogous Rings
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
Zobrazit plný text záznamu
9
Akademický článek
Green Production of Cladribine by Using Immobilized 2′-Deoxyribosyltransferase from Lactobacillus delbrueckii Stabilized through a Double Covalent/Entrapment Technology
Autor: Cintia Wanda Rivero, Natalia Soledad García, Jesús Fernández-Lucas, Lorena Betancor, Gustavo Pablo Romanelli, Jorge Abel Trelles
Publikováno v: Biomolecules, Vol 11, Iss 5, p 657 (2021)
Nowadays, enzyme-mediated processes offer an eco-friendly and efficient alternative to the traditional multistep and environmentally harmful chemical processes. Herein we report the enzymatic synthesis of cladribine by a novel 2′-deoxyribosyltransf
Externí odkaz: https://doaj.org/article/3453f1acae2549508639611eec7139e6
Zobrazit plný text záznamu
10
Akademický článek
Recent Applications of Heteropolyacids and Related Compounds in Heterocycle Synthesis. Contributions between 2010 and 2020
Autor: Angélica M. Escobar, Guillermo Blustein, Rafael Luque, Gustavo P. Romanelli
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
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje