Search Results - "Varejão, Eduardo Vinícius Vieira"

Calix[n]arenes as goldmines for the development of chemical entities of pharmaceutical interest by Varejão, Eduardo Vinícius Vieira, de Fátima, Angelo, Fernandes, Sergio Antonio

“…Calix[n]arenes are macrocyclic cone-shaped compounds formed from phenolic units linked by methylene groups in the ortho position. Structural features make…”
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Synthesis and Derivatization of Julolidine: A Powerful Heterocyclic Structure by Varejão, Jodieh Oliveira Santana, Varejão, Eduardo Vinícius Vieira, Fernandes, Sergio Antonio

“…Julolidines constitute a class of N‐heterocycle compounds which have in common the 2,3,6,7‐tetrahydro‐1H,5H‐benzo[1,2]quinolizine ring. Due mainly to its…”
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Synthesis of Tyrosol 1,2,3-Triazole Derivatives and Their Phytotoxic Activity against Euphorbia heterophylla by Franco, Cristiane Aparecida, da Silva, Toshik Iarley, Dias, Marlon Gomes, Ferreira, Bruno Wesley, de Sousa, Bianca Lana, Bousada, Guilherme Mateus, Barreto, Robert Weingart, Vaz, Boniek Gontijo, Lima, Gesiane da Silva, dos Santos, Marcelo Henrique, Grossi, José Antônio Saraiva, Vieira Varejão, Eduardo Vinícius

“…The synthesis and phytotoxic activity of a series of tyrosol 1,2,3-triazole derivatives are reported herein. Target compounds were synthesized through the…”
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Recovery of Metallic Lead of Cupel Wastes from Gold Analysis by Alkaline Fusion in the Presence of Sulfur by Cerceau, Cristiane Isaac, de Freitas Carvalho, Cornélio, Varejão, Eduardo Vinícius Vieira, dos Santos, Cláudio Gouvea, de Andrade Alvarenga Oliveira, Víctor

“…High precision and accuracy make Pb-Fire assay the method of choice for gold analysis in mineralogical samples. The second stage of this method, called…”
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Phytotoxic effects of metabolites from Alternaria euphorbiicola against its host plant Euphorbia heterophylla by Varejão, Eduardo Vinícius Vieira, Demuner, Antônio Jacinto, Barbosa, Luiz Cláudio de Almeida, Barreto, Robert Weingart

“…A bioassay-guided fractionation of culture filtrates of the fungus Alternaria euphorbiicola, a pathogen of the weed Euphorbia heterophylla, led to the…”
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Synthesis of drynaran and analogues by Mendes, Lorena Lessa, Varejão, Jodieh Oliveira Santana, Terra, Felipe Martins, Neto, João Honorato de A., Varejão, Eduardo Vinícius Vieira

“…•First report on the synhtesis of drynaran, previoulsy isolated from drynaria bonii.•Synthesis of a series of drynaran analogues.•Simple, fast, one step, green…”
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Improving biofuel production by thermochemical conversion of defatted Scenedesmus obliquus biomass by Rocha, Dilson Novais, Barbosa, Eloiny Guimarães, Renato, Natalia dos Santos, Varejão, Eduardo Vinícius Vieira, Silva, Ueveton Pimentel da, Araujo, Marcos Eduardo Viana de, Martins, Marcio Arêdes

“…An investigation of resource recovery from biofuel production from microalgae is essential to increase the overall efficiency of the system. In this study,…”
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Allelopathic activity and chemical constituents of extracts from roots of Euphorbia heterophylla L by da Silva, Ueveton Pimentel, Furlani, Gabriela Milane, Demuner, Antônio Jacinto, da Silva, Otávio Luis Marques, Varejão, Eduardo Vinícius Vieira

“…Euphorbia heterophylla L. is regarded as a major weed worldwide. Its high aggressiveness in agricultural environment prompted us to investigate the allelopatic…”
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Synthesis of bis(ylidene) cyclohexanones and their antifungal activity against selected plant pathogenic fungi by da Silva, Ueveton Pimentel, Ferreira, Bruno Wesley, de Sousa, Bianca Lana, Barreto, Robert Weingart, Martins, Felipe Terra, de A. Neto, João Honorato, Vaz, Boniek Gontijo, da Silva, Rodolfo Rodrigues, Martins, Thaís Viana Fialho, de Oliveira Mendes, Tiago Antônio, Varejão, Eduardo Vinícius Vieira

“…Botrytis cinerea , Rhizoctonia solani and Hemileia vastatrix are three species of phytopathogenic fungi behind major crop losses worldwide. These have been…”
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Rubrolide analogues as urease inhibitors by Varejão, Jodieh Oliveira Santana, Barbosa, Luiz Cláudio Almeida, Varejão, Eduardo Vinícius Vieira, Coreas, Nidia Magally Galdámez, Morais, Vinicius Stefano Santos, de Oliveira, André Mauricio, Barcelos, Rosimeire Coura, Maltha, Célia Regina Álvares, Modolo, Luzia Valentina

“…Urease is an important virulence factor involved in the colonization and infection of gastric mucosa by Helicobacter pylori . In this work, the urease…”
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Recovering lead from cupel waste generated in gold analysis by Pb-Fire assay by Cerceau, Cristiane Isaac, Carvalho, Cornélio de Freitas, Rabelo, Ana Carolina Silveira, dos Santos, Cláudio Gouvea, Gonçalves, Sabrina Mayra Dias, Varejão, Eduardo Vinícius Vieira

“…Because of its precision and accuracy, Pb-Fire assay is the most employed method for gold analysis in geological materials. At the second stage of the method,…”
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Isolation, X-ray crystal structure and DFT calculations for 9β,13β-epoxy-7-abietene from the essential oil of Tetradenia riparia by Silva, Erika Loiola, Benevenuto, Thainara Alves de Mello, Lessa, Milena Diniz, Alvarenga, Meiry Edivirges, Varejão, Jodieh Oliveira Santana, Martins, Lucas Ferreira, Lião, Luciano Morais, Pereira, Cássia Gondim, de Freitas, Leandro Grassi, Franco, Cristiane Aparecida, Martins, Felipe Terra, Carneiro, José Walkimar de Mesquita, Varejão, Eduardo Vinícius Vieira

“…•Column chromatography fractionation of the essential oil of Tetradenia riparia.•Isolation of the abietane diterpenoid 9β,13β-epoxy-7-abietene as reddish…”
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Multicomponent double Povarov reaction for julolidine: Synthesis and mechanistic insights by Castañeda, Sandra Milena Bonilla, de Paiva, Walysson Ferreira, Castro, Gabriel Abranches Dias, Varejão, Eduardo Vinícius Vieira, da Silva, Márcio José, Alvarenga, Meiry Edivirges, Martins, Felipe Terra, Lessa, Milena Diniz, Fiorot, Rodolfo Goetze, Carneiro, José Walkimar de M., Fernandes, Sergio Antonio

“…•Julolidines constitute a class of N-heterocyclic hat behave as molecular rotors.•The julolidines were obtained in yields ranging from 55 to 95 %.•The BF3…”
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Otimização das condições de pré-redução do As(V) em extratos do método BCR para quantificação de arsênio por HG-AAS by Varejão, Eduardo Vinícius Vieira, Bellato, Carlos Roberto, Mello, Jaime Wilson Vargas de, Fontes, Maurício Paulo Ferreira

“…A determinação de As por espectrometria de absorção atômica com geração de hidretos (HG-AAS) constitui um método simples, sensível, preciso e de baixo custo…”
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Otimização das condições de pré-redução do As(V) em extratos do método BCR para quantificação de arsênio por HG-AAS Optimization of pre-reduction conditions of as(V) in BCR extracts to quantify arsenic by HG-AAS by Eduardo Vinícius Vieira Varejão, Carlos Roberto Bellato, Jaime Wilson Vargas de Mello, Maurício Paulo Ferreira Fontes

“…A determinação de As por espectrometria de absorção atômica com geração de hidretos (HG-AAS) constitui um método simples, sensível, preciso e de baixo custo…”
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Otimização das condições de pré-redução do As(V) em extratos do método BCR para quantificação de arsênio por HG-AAS by Varejão, Eduardo Vinícius Vieira(Universidade Federal de Viçosa), Bellato, Carlos Roberto(UFV Departamento de Química), Mello, Jaime Wilson Vargas de(UFV Departamento de Solos), Fontes, Maurício Paulo Ferreira(UFV Departamento de Solos)

“…A determinação de As por espectrometria de absorção atômica com geração de hidretos (HG-AAS) constitui um método simples, sensível, preciso e de baixo custo…”
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