Search Results - "Aragão, Valquiria"

Glycerol as a by-product of biodiesel production in Brazil: Alternatives for the use of unrefined glycerol by Leoneti, Alexandre Bevilacqua, Aragão-Leoneti, Valquiria, de Oliveira, Sonia Valle Walter Borges

“…On January 1 2008, Brazil included yet another element into its energy matrix: biodiesel. The predominant biodiesel production process involves a phase of…”
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Iminosugars: Effects of Stereochemistry, Ring Size, and N -Substituents on Glucosidase Activities by Zamoner, Luís O B, Aragão-Leoneti, Valquiria, Carvalho, Ivone

“…-substituted iminosugar analogues are potent inhibitors of glucosidases and glycosyltransferases with broad therapeutic applications, such as treatment of…”
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Application of copper(I)-catalysed azide/alkyne cycloaddition (CuAAC) ‘click chemistry’ in carbohydrate drug and neoglycopolymer synthesis by Aragão-Leoneti, Valquiria, Campo, Vanessa L., Gomes, Adriane S., Field, Robert A., Carvalho, Ivone

“…An overview of the potential application of copper(I)-catalysed azide/alkyne cycloaddition (CuAAC) ‘click chemistry’ in the synthesis of bioactive…”
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An approach to the synthesis of furanoheliangolides through Diels–Alder reactions by Constantino, Mauricio Gomes, Aragão, Valquiria, José da Silva, Gil Valdo

“…In this Letter we describe an approach involving two Diels–Alder reactions as key steps to build the bicyclic ring system. The core structure of the natural…”
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Simple and efficient synthesis of 2,5-anhydro-d-glucitol by Aragão-Leoneti, Valquiria, Carvalho, Ivone

“…The synthesis of 2,5-anhydro-d-glucitol is described via intramolecular cyclization of diepoxide using ammonium formate in MeOH by a microwave-assisted…”
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Synthesis of 1-methyl-3-oxo-7-oxabicyclo[2.2.1]hept-5-ene-2-carboxylic acid methyl ester by Aragão, Valquiria, Constantino, Mauricio Gomes, Beatriz, Adilson, José da Silva, Gil Valdo

“…A simple and efficient method for the preparation of 1-methyl-3-oxo-7- oxabicyclo[2.2.1]hept-5-en-2-carboxylic acid methyl ester (1) is described. The first…”
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The methylic versus the ethylic route: considerations about the sustainability of Brazilian biodiesel production by Leoneti, Alexandre Bevilacqua, Aragão-Leoneti, Valquiria, Galina, Simone Vasconcelos Ribeiro, Porto, Geciane Silveira

“…Brazil is considered one of the world’s leading producers of biofuels given the predominance of ethanol fuel in its energy matrix. However, despite the…”
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CuAAC click chemistry with N-propargyl 1,5-dideoxy-1,5-imino-D-gulitol and N-propargyl 1,6-dideoxy-1,6-imino-D-mannitol provides access to triazole-linked piperidine and azepane pseudo-disaccharide iminosugars displaying glycosidase inhibitory properties by Zamoner, Luís Otávio B., Aragão-Leoneti, Valquíria, Mantoani, Susimaire P., Rugen, Michael D., Nepogodiev, Sergey A., Field, Robert A., Carvalho, Ivone

“…•Eight triazole-linked piperidine and azepane pseudo-disaccharide iminosugars were synthesized from 1,2:5,6-di-anhydro-D-mannitol scaffold using click…”
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Niobium Pentachloride Catalysed Ring Opening of Epoxides by Constantino, Mauricio Gomes, Lacerda, Valdemar, Aragão, Valquiria

“…Epoxide ring opening is a frequently required transformation in Organic Synthesis. In this paper we describe the application of NbCl5 for this purpose using…”
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