Search Results - "Guarda, Emerson A."

Determination of Carbamates and Thiocarbamates in Water, Soil and Sediment of the Formoso River, TO, Brazil by Guarda, Patricia M., Pontes, Antonina M. S., S. Domiciano, Raquel, S. Gualberto, Larissa, B. Mendes, Danylo, A. Guarda, Emerson, Silva, José E. C.

“…Considering the increase in agricultural production in Brazil, the use of pesticides for this production, and that there are no studies on pesticides in the…”
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Microbial metabolic activity in Amazon floodplain forest and agricultural soils by Barros, Dayane J, Carvalho, Glauber A, de Chaves, Miriam G, Vanzela, Luiz S, Kozusny-Andreani, Dora Inés, Guarda, Emerson A, Neu, Vania, de Morais, Paula B, Tsai, Siu M, Navarrete, Acacio A

“…Microorganisms play an essential role in ecosystem functions. An increasingly used method for conducting functional analyses of a soil microbial community is…”
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Assessment of Ecological Risk and Environmental Behavior of Pesticides in Environmental Compartments of the Formoso River in Tocantins, Brazil by Guarda, Patricia M., Pontes, Antonina M. S., Domiciano, Raquel de S., Gualberto, Larissa da S., Mendes, Danylo B., Guarda, Emerson A., da Silva, José E. C.

“…Anthropogenic interference the ecosystem unavoidably changes the physical and biological environment. The biodiversity of the Amazon region has been threatened…”
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Enol ethers and acetals: acylation with dichloroacetyl, acetyl and benzoyl chloride in ionic liquid medium by Guarda, Emerson A., Marzari, Mara R.B., Frizzo, Clarissa P., Guarda, Patrícia M., Zanatta, Nilo, Bonacorso, Helio G., Martins, Marcos A.P.

“…Synthesis of 4-alkoxy-1,1-dichloro-3-alken-2-ones [CHCl2C(O)C(R2)C(R1)-OR, where R, R1, R2=Et, H, H; Me, Me, H; Et, H, Me; Me, –(CH2)2–; Me, –(CH2)3–; Et, Et,…”
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Ionic Liquids Promoted the C-Acylation of Acetals in Solvent-free Conditions by Martins, Marcos A. P, Guarda, Emerson A, Frizzo, Clarissa P, Moreira, Dayse N, Marzari, Mara R. B, Zanatta, Nilo, Bonacorso, Helio G

“…The synthesis of a series of fourteen 4-alkoxy-1,1,1-trihalo-3-alken-2-ones (2,3) [CX₃COC(R²)=C(R¹)OMe, where X = Cl, F; R¹/R² = Me/H, Bu/H, i-Bu/H, Ph/H,…”
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Synthesis of 1,1,1-trichloro[fluoro]-3-alken-2-ones using ionic liquids by Martins, Marcos A.P., Guarda, Emerson A., Frizzo, Clarissa P., Scapin, Elisandra, Beck, Paulo, da Costa, Alexandre C., Zanatta, Nilo, Bonacorso, Helio G.

“…i: Pyridine (1 equiv.), [BMIM]·BF 4 or [BMIM]·PF 6 (0.1 equiv.), 0° to r.t., 1.5 h. ▪ The synthesis of a series of ten 1,1,1-trichloro[fluoro]-3-alken-2-ones…”
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Application of Oil Extracted from Cashew Nut Peel (Anacardium occidentale) as an Antioxidant for Biodiesel by Ramos, Fabrício, Guarda, Patrícia, Sousa, Rosinete, Mendes, Danylo, Silva, Fabiana, Guarda, Emerson

“…The present work aims to extract and test cashew nut peel oil as a natural antioxidant in the oxidative stabilization of biodiesel. Therefore, determinations…”
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Pretreatment of Oryza sativa (Rice) and Musa cavendishii (Banana) Waste Biomass Using Ionic Liquids of Choline Amino Acid for Nanoscale Cellulose Production by da Silva, Fabiane, Mendes, Danylo, Guarda, Patrícia, Rodriguez, Anselmo, Guarda, Emerson

“…The species Oryza sativa (rice) and Musa cavendishii (banana) are sources of cellulose-rich waste biomass in the Amazon region, Tocantins State. This research…”
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Ultrasound Assisted Pretreatments Applied to Cupuaçu Husk (Theobroma grandiflorum) from Brazilian Legal Amazon for Biorefinery Concept by Marasca, Nicole, Cardoso, Isabella, Rambo, Magale, Bertuol, Daniel, Rambo, Michele, Guarda, Emerson, Scapin, Elisandra

“…Cupuaçu husk (CH) is the waste of a common fruit from a native species of the Brazilian Legal Amazon. The current study investigated the influence of…”
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Ionic liquid as catalyst in the synthesis of N-alkyl trifluoromethyl pyrazoles by Frizzo, Clarissa P., Moreira, Dayse N., Guarda, Emerson A., Fiss, Gabriela F., Marzari, Mara R.B., Zanatta, Nilo, Bonacorso, Helio G., Martins, Marcos A.P.

“…The efficacy of ionic liquids was evaluated in the N-alkylation reaction of 3,5-dimethyl- and 5-trifluoromethyl-3-methyl-1 H-pyrazoles, from the reaction of…”
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An ionic liquid as reaction medium for the synthesis of halo-containing β-enaminones at room temperature by Martins, Marcos A. P., Guarda, Emerson A., Frizzo, Clarissa P., Marzari, Mara R. B., Moreira, Dayse N., Zanatta, Nilo, Bonacorso, Helio G.

“…A series of twenty halomethylated β-enaminones [ R C(O)CH=C( R 1 )N R 3 R 4 , where R = CF 3 ,CCl 3 , CHCl 2 ; R 1 = H, Me , Ph ; R 3 = H, Me , Bu , Et ; R 4 =…”
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