Search Results - "da Silva, Márcio Jose"

An efficient process to synthesize solketal from glycerol over tin (II) silicotungstate catalyst by da Silva, Márcio Jose, Teixeira, Milena Galdino, Chaves, Diego Morais, Siqueira, Lucas

“…[Display omitted] •We report that Sn2SiW12O40 salt act as Lewis and Brønsted acid catalyst.•Sn2SiW12O4 was most active than Keggin HPAs and tin(II) salt…”
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Novel Esterification of Glycerol Catalysed by Tin Chloride (II): A Recyclable and Less Corrosive Process for Production of Bio-Additives by Gonçalves, Cayo Emilio, Laier, Letícia Oliveira, Silva, Márcio José da

“…In this work, a novel process based on use of a SnCl 2 ·2H 2 O catalyst which is less corrosive, inexpensive, and a water tolerant Lewis acid was employed for…”
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Transcriptional analysis of drought-induced genes in the roots of a tolerant genotype of the common bean (Phaseolus vulgaris L.) by Recchia, Gustavo Henrique, Caldas, Danielle Gregorio Gomes, Beraldo, Ana Luiza Ahern, da Silva, Márcio José, Tsai, Siu Mui

“…In Brazil, common bean (Phaseolus vulgaris L.) productivity is severely affected by drought stress due to low technology cultivation systems. Our purpose was…”
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Glycerol Esterification over Sn(II)-Exchanged Keggin Heteropoly Salt Catalysts: Effect of Thermal Treatment Temperature by Chaves, Diego Morais, Ferreira, Sukarno Olavo, Chagas da Silva, Rene, Natalino, Ricardo, José da Silva, Márcio

“…In this work, Sn­(II)-exchanged Keggin heteropoly acid salts were evaluated as solid catalysts in glycerol esterification reactions with acetic acid. All the…”
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Na4PMo11VO40-catalyzed one-pot oxidative esterification of benzaldehyde with hydrogen peroxide by Castelo Bandane Vilanculo, da Silva, Márcio José

“…The activity of the sodium salts of vanadium-doped phosphomolybdic acid was assessed in the oxidative esterification reaction of benzaldehyde with hydrogen…”
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Vanadium-doped phosphomolybdic acids as catalysts for geraniol oxidation with hydrogen peroxide by José da Silva, Márcio, Vergara Torres, Jonh Alexander, Vilanculo, Castelo Bandane

“…In this work, vanadium-doped phosphomolybdic acids were evaluated as catalysts in green oxidation routes of terpene alcohols with hydrogen peroxide. A series…”
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Sn(II)-Exchanged Keggin Silicotungstic Acid-Catalyzed Etherification of Glycerol and Ethylene Glycol with Alkyl Alcohols by da Silva, Márcio José, Chaves, Diego Morais, Júlio, Armanda Aparecida, Rodrigues, Fabio Avila, Bruziquesi, Carlos Giovani Oliveira

“…In this work, efficient solid acid catalysts were obtained from the stoichiometric reactions of Keggin heteropolyacids with SnSO4 and evaluated in the…”
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Sulfated-Alumina-Catalyzed Triacetin Synthesis: An Optimization Study of Glycerol Esterification by Baião Ferreira, Felipe, da Silva, Márcio José, Rodrigues, Fábio de Ávila, da Silva Faria, Wagner Luis

“…The catalytic activity of sulfated γ-Al2O3 was evaluated for glycerol esterification using response surface methodology (RSM) with a central composite design…”
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Biodiesel Production over Niobium-Containing Catalysts: A Review by Batalha, Daniel Carreira, da Silva, Márcio José

“…Nowadays, the synthesis of biofuels from renewable raw materials is very popular. Among the various challenges involved in improving these processes,…”
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Tungstic Acid: A Simple and Effective Solid Catalyst in Terpene Alcohol Oxidation Reactions with Hydrogen Peroxide by da Silva, Márcio José, da Silva Andrade, Pedro Henrique

“…In this work, we report for the first time, the tungstic acid-catalyzed oxidation of terpene alcohols with hydrogen peroxide. This simple, solid, and…”
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Novel and Highly Efficient SnBr2-Catalyzed Esterification Reactions of Fatty Acids: The Notable Anion Ligand Effect by Ferreira, Arthur Batista, Cardoso, Abiney Lemos, da Silva, Márcio José

“…In this work, the efficiency of Lewis acid catalysts, SnX 2 (X = F − , Cl − , Br − , or − OAc), was investigated on the esterification reactions of fatty acids…”
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H4SiW12O40-Catalyzed Levulinic Acid Esterification at Room Temperature for Production of Fuel Bioadditives by Vilanculo, Castelo Bandane, de Andrade Leles, Lorena Christina, da Silva, Márcio José

“…In this work, a route to synthesize bioadditives through H 4 SiW 12 O 40 -catalyzed levulinic acid esterification reactions with alcohols of short chain at…”
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Molecular characterisation of the NSP4 gene of group A human rotavirus G2P[4] strains circulating in São Paulo, Brazil, from 1994 and 2006 to 2010 by Bertol, Jéssica Wildgrube, Fregolente, Maria Clara Duarte, Caruzo, Thabata Alessandra Ramos, da Silva, Márcio José, Munford, Veridiana, Sáfadi, Marco Aurélio Palazzi, Rácz, Maria Lucia, Gatti, Maria Silvia Viccari

“…Group A human rotaviruses (HuRVA) are causative agents of acute gastroenteritis. Six viral structural proteins (VPs) and six nonstructural proteins (NSPs) are…”
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Catalysis of vegetable oil transesterification by Sn(II)-exchanged Keggin heteropolyacids: bifunctional solid acid catalysts by Da Silva, Márcio José, Vilanculo, Castelo Bandane, Teixeira, Milena Galdino, Julio, Armanda Aparecida

“…Keggin heteropolyacid protons (i.e., H 3 PW 12 O 40 , H 3 PMo 12 O 40 , H 4 SiW 12 O 40 ) were partially exchanged with Sn(II) cations generating solid acid…”
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Monolacunary K8SiW11O39-Catalyzed Terpenic Alcohols Oxidation with Hydrogen Peroxide by da Silva, Márcio José, da Silva Andrade, Pedro Henrique, Ferreira, Sukarno Olavo, Vilanculo, Castelo Bandane, Oliveira, Cesar Macedo

“…Lacunar potassium undecasilicotungstate salt catalyst was highly efficient in oxidation reactions of terpenic alcohols with hydrogen peroxide. Carbonylic…”
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Streptomyces brasiliscabiei, a new species causing potato scab in south Brazil by Corrêa, Daniele Bussioli Alves, do Amaral, Danilo Trabuco, da Silva, Márcio José, Destéfano, Suzete Aparecida Lanza

“…This study aimed to characterize six Streptomyces strains associated with potato scab in south Brazil through polyphasic taxonomy involving morphology,…”
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An Efficient Benzaldehyde Oxidation by Hydrogen Peroxide over Metal Substituted Lacunary Potassium Heteropolyacid Salts by da Silva, Márcio José, de Andrade Leles, Lorena Cristina, Natalino, Ricardo, Ferreira, Sukarno Olavo, Coronel, Nelson Contreras

“…Keggin heteropolyacids (i.e. H 3 PW 12 O 40 , H 3 PMo 12 O 40 and H 4 SiW 12 O 40 ) were converted to potassium lacunary salts and afterwards their vacancy…”
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Monoterpenes etherification reactions with alkyl alcohols over cesium partially exchanged Keggin heteropoly salts: effects of catalyst composition by da Silva, Márcio José, Lopes, Neide Paloma Goncalves, Ferreira, Sukarno Olavo, da Silva, Rene Chagas, Natalino, Ricardo, Chaves, Diego Morais, Texeira, Milena Galdino

“…In this work, cesium partially exchanged Keggin heteropolyacid (HPA) salts were prepared, characterized, and evaluated as solid catalysts in monoterpenes…”
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A Highly Selective Na2WO4-Catalyzed Oxidation of Terpenic Alcohols by Hydrogen Peroxide by Viana, Luna Andrade Silva, da Silva, Giovanna Rodrigues Nobile, da Silva, Márcio Jose

“…Sodium tungstate was found to be an active and highly selective catalyst to oxidation of various primary or secondary origin renewable alcohols by hydrogen…”
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Phylogeography of the dry vegetation endemic species Nephila sexpunctata (Araneae: Araneidae) suggests recent expansion of the Neotropical Dry Diagonal by de Macedo Bartoleti, Luiz Filipe, Peres, Elen Arroyo, Sobral-Souza, Thadeu, von Hertwig Mascarenhas Fontes, Fernanda, da Silva, Márcio José, Solferini, Vera Nisaka

“…Aim The Neotropical Dry Diagonal (DD) is a corridor of distinct dry environments in central South America. The main hypotheses suggest that these environments…”
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