Výsledky vyhledávání - "Ricardo F, Affeldt"

SBA-15 obtained from rice husk ashes wet-impregnated with metals (Al, Co, Ni) as efficient catalysts for 1,4-dihydropyridine three-component reaction

Autor: Heitor A. G. Bazani, Allison Thomé, Ricardo F. Affeldt, Luiz F. D. Probst

Publikováno v: New Journal of Chemistry. 46:7899-7909

A fully characterized mesoporous silica prepared from industrial waste was impregnated with metals and applied as a green heterogeneous catalyst.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3565f758d8f733521a45e0dcf0b4e7b
https://doi.org/10.1039/d1nj04835j

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Coordination among Bond Formation/Cleavage in a Bifunctional-Catalyzed Fast Amide Hydrolysis: Evidence for an Optimized Intramolecular N-Protonation Event

Autor: Ricardo F. Affeldt, Faruk Nome, Bruno Surdi Oliveira, Fredric M. Menger, Matheus Santos Ferraz, Fabio Pra da Silva de Souza, Bruno S. Souza, Eduardo V. Silveira, Giovanni F. Caramori, Leandro Scorsin

Publikováno v: The Journal of Organic Chemistry. 85:4663-4671

A density functional theory (DFT) computational analysis, using the ωB97X-D functional, of a rapid amide cleavage in 2-carboxyphthalanilic acid (2CPA), where the amide group is flanked by two catalytic carboxyls, reveals key mechanistic information:

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::358083dd2ada503da206255952a05edf
https://doi.org/10.1021/acs.joc.9b03383

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Photoinduced, Direct C(sp 2 )−H Bond Azo Coupling of Imidazoheteroarenes and Imidazoanilines with Aryl Diazonium Salts Catalyzed by Eosin Y

Autor: Caio R. Dos Santos, Bruno R. Zavarise, Sumbal Saba, Alex R. Schneider, Marcos R. Scheide, Marcelo S. Franco, Antonio L. Braga, Ricardo F. Affeldt, Aline A. S. Naujorks, Jamal Rafique

Publikováno v: Chemistry – A European Journal. 26:4461-4466

Herein, a greener approach to the eosin Y-Na2 catalyzed, C(sp2 )-H bond azo coupling of imidazoheteroarene with aryl diazonium salts is described, under acid free conditions. This direct photoredox process resulted in the corresponding azo products i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::557ba5a2c53da9837f34e173050394c1
https://doi.org/10.1002/chem.201905308

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A novel hybrid organic–inorganic silsesquioxane and cobalt(ii) tetrasulphophthalocyanine material as an efficient electrochemical sensor for the simultaneous determination of the anti-hypertensive nifedipine and its metabolite

Autor: Rosely A. Peralta, Renato Luis Tamme Parreira, Giovana Schmitt Wecker, Glaucio R. Nagurniak, João Paulo Winiarski, Ricardo F. Affeldt, Cristiane Luisa Jost, Marília Reginato de Barros

Publikováno v: Journal of Materials Chemistry C. 8:6839-6850

In this study, a novel ionic silsesquioxane (Si4DMAP+Cl−) was developed through a facile synthetic sol–gel method and utilized as a recoating layer with the cobalt(II) tetrassulphophthalocyanine (CoTsPc) compound in order to modify a glassy carbo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ab61c1c1ead687818930a24320d3d2f
https://doi.org/10.1039/d0tc00429d

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Molecular recognition of methamphetamine by carboxylatopillar[5]arene: drug-dependent complexation stoichiometry and insights into medical applications

Autor: Eduardo V. Silveira, Pâmella da Silva Cordeiro, Vanessa Nascimento, Andrieli K. Masson, Eduardo H. Wanderlind, Gustavo Amadeu Micke, Ricardo F. Affeldt

Publikováno v: New Journal of Chemistry. 44:2701-2704

The molecular recognition of the carboxylatopillar[5]arene on methamphetamine showed interconversion between H2:G H:G stoichiometries with dependence on drug concentration. The study simulated conditions of severe metabolic acidosis (pH 7.00) and pre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a385f30e9f76d2d4fc5932c74a791769
https://doi.org/10.1039/c9nj06213k

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Inhibitory and Cooperative Effects Regulated by pH in Host–Guest Complexation between Cationic Pillar[5]arene and Reactive 2-Carboxyphthalanilic Acid

Autor: Vanessa Nascimento, Eduardo H. Wanderlind, Ricardo F. Affeldt, Faruk Nome, Gustavo Amadeu Micke, Luis García-Río, Eduardo V. Silveira

Publikováno v: The Journal of Organic Chemistry. 84:9684-9692

The study of host-guest complexation between reactive 2-carboxyphthalanilic acid (CPA) and two cationic pillararenes has been carried out. Host-guest complexation with significant kinetic effects was observed only with the smaller cavity size pillara

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05114b8957a279c9427a5d8c3ef69fc7
https://doi.org/10.1021/acs.joc.9b01377

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Coordination among Bond Formation/Cleavage in a Bifunctional-Catalyzed Fast Amide Hydrolysis: Evidence for an Optimized Intramolecular

Autor: Leandro, Scorsin, Ricardo F, Affeldt, Bruno S, Oliveira, Eduardo V, Silveira, Matheus S, Ferraz, Fábio P S, de Souza, Giovanni F, Caramori, Fredric M, Menger, Bruno S, Souza, Faruk, Nome

Publikováno v: The Journal of organic chemistry. 85(7)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::8e03d629456701af7d5d459bd681a35a
https://pubmed.ncbi.nlm.nih.gov/32155066

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