Search Results - "Flores, Darlene C"

Cyclocondensation between fatty acid hydrazides and 1,1,1-trifluoro-4-alkoxy-3-alken-2-ones: Introducing a trifluoromethylated head onto fatty acid moieties by Teixeira, Wystan K. O., Gonçalves, Helena A., de Mello, Débora L., Moura, Sidnei, Flores, Darlene C., Flores, Alex F. C.

“…This paper reports the regioselective synthesis of new trifluoromethylated lipid derivatives, namely,…”
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From Levulinic Acid to Biheterocycles: Synthesis of 1-[(5-Hydroxy-5-trifluoromethyl-3-substituted-4,5-dihydro-1H-pyrazol-1-yl)-3-(5-trifluoromethyl-1H-pyrazol-3-yl)propan-1-ones by Flores, Alex F. C., Malavolta, Juliana L., Frigo, Leandro M., Doneda, Morgana, Flores, Darlene C.

“…We develop an efficient method to synthesize novel propionyl-spaced bisheterocyclic compounds. It entails cyclocondensation of…”
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Synthesis of diverse N-acyl-pyrazoles via cyclocondensation of hydrazides with α-oxeketene dithioacetal by Pereira, Bruna Á., de Bastos, Alcione V., Teixeira, Wystan K. O., e Silva, Sidnei Moura, Flores, Alex F. C., Flores, Darlene C.

“…An elegant, efficient, and highly regioselective approach for the synthesis of novel methyl 5-amino-3-(methylthio)-1-differently substituted-1 H…”
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From Renewable Levulinic Acid to a Diversity of 3-(Azol-3-yl)Propanoates by Flores, Alex F. C., Piovesan, Luciana A., Pizzuti, Lucas, Flores, Darlene C., Malavolta, Juliana L., Martins, Marcos A. P.

“…Efficient heterocyclization of methyl 7,7,7‐trifluoro‐4‐methoxy‐6‐oxo‐4‐heptenoate and methyl 7,7,7‐trichloro‐4‐methoxy‐6‐oxo‐4‐heptenoate into isoxazole and…”
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Synthesis, Structure, and Cyclocondensation of the 4,4,4-Trifluoro-3,3-dihydroxy-2-methyl-1-(thien-2-yl)-1-butanone with Hydroxylamine and Hydrazine by Balliano, Tatiane L., Pereira, Mariano A., Flores, Darlene C., Kuhn, Bruna P., Flores, Alex F. C., da Silva, Givanildo S.

“…The synthesis of 4,4,4-trifluoro-3,3-dihydroxy-2-methyl-1-(thien-2-yl)butan-1-one (3) through acylation of 1,1-dimethoxy-1-(thien-2-yl)propane (1) with…”
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Synthesis and structure of new trichloromethyl-β-diketones — 5-Trichloromethylisoxazole and 5-isoxazolecarboxylic acid derivatives by Martins, Marcos A.P, Brondani, Sergio, Leidens, Victor L, Flores, Darlene C, Moura, Sidnei, Zanatta, Nilo, Hörner, Manfredo, Flores, Alex FC

“…An improved method for the synthesis of a new series of trichloromethyl-β-diketones including 1,1,1-trichloropentan-2,4-dione ( 2a ),…”
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Inhibitory Effect of Novel Pyrimidines on ATP and ADP Hydrolysis in Synaptosomes from Rat Cerebral Cortex by Cechin, Sirlene R, Schetinger, Maria Rosa C, Zanatta, Nilo, Madruga, Claudia C, Pacholski, Iraci L, Flores, Darlene C, Bonacorso, Helio G, Martins, Marcos A. P, Morsch, Vera M

“…In this study, a new series of trihalomethyl-substituted pyrimidines and dihydropyrimidines were synthesized and tested as potential NTPDase inhibitors. For…”
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Synthesis of the omega-brominated alpha-trifluoroacetylcycloalkanones and their isoxazole derivatives by Flores, Alex F. C., Peres, Rodrigo L., Piovesan, Luciana A., Flores, Darlene C., Bonacorso, Helio G., Martins, Marcos A. P.

“…The reactions of a serie of the 2-trifluoroacetyl-1-methoxy-1-cycloalkenes (1a-1e) and 2-trifluoroacetylcycloalkanones (2a-2e) with molecular bromine to obtain…”
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Efficient Synthesis and Antimicrobial Activities of Long Alkyl Chain Trifluoromethyl-1H-pyrazol-1-(thio)carboxamides and Trifluoromethyl-1H-pyrazol-1-yl-thiazoles by Mello, Debora L. de, Malavolta, Juliana L., Santos, Roberto C. V., Lopes, Leonardo Q. S., Moura, Sidnei, Flores, Darlene C., Flores, Alex F. C.

“…The synthesis of 3-alkyl-5-trifluoromethyl-1H- pyrazole-1-carboxamides, 3-alkyl-5-trifluoromethyl-1H-pyrazole-1-thiocarboxamides, and…”
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An Acetal Acylation Methodology for Producing Diversity of Trihalomethyl- 1,3‑dielectrophiles and 1,2-Azole Derivatives by Bareño, Valéria, Santos, Daiane, Frigo, Leandro, de Mello, Debora, Malavolta, Juliana, Blanco, Rogerio, Pizzuti, Lucas, Flores, Darlene, Flores, Alex

“…A series of functionalized 1,1,1-trihalo-4-methoxy-3-alken-2-ones [CX3C(O)CR1=CROMe, where X = F or Cl; R = n-heptyl, n-octyl, n-nonyl, n-decyl, n-undecyl,…”
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Strategies for the Efficient Synthesis of Biheterocyclic 5-[2-(Trifluoromethylheteroaryl)-ethyl]-1,3,4-oxadiazoles from Levulinic Acid by Malavolta, Juliana, Frigo, Leandro, Moura, Sidnei, Flores, Darlene, Flores, Alex

“…The synthesis of 5-[2-(trifluoromethylheteroaryl)-ethyl]-1,3,4-oxadiazoles derived from levulinic acid is reported. Cyclocondensations [4 + 1] between four…”
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Efficient Synthesis of New Biheterocyclic 5-[(5-Trifluoromethyl-5-hydroxy-4,5-dihydro-1 H -pyrazol-1-yl)-1-propan-1-one-3-yl]-2-methyl-7-trifluoromethylpyrazolo[1,5- α ]pyrimidines by Flores, Alex F. C., Rosales, Pauline F., Malavolta, Juliana L., Flores, Darlene C.

“…Twelve new 5-[(5-trifluoromethyl-5-hydroxy-4,5-dihydro-1H-pyrazol-1-yl)-1-propan-1-one-3-yl]-2-methyl-7-trifluoromethylpyrazolo[1,5-a]pyrimidines were prepared…”
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Antioxidant and antimicrobial properties of 2-(4,5-dihydro-1H-pyrazol-1-yl)-pyrimidine and 1-carboxamidino-1H-pyrazole derivatives by Gressler, Vanessa, Moura, Sidnei, Flores, Alex F. C., Flores, Darlene C., Colepicolo, Pio, Pinto, Ernani

“…Five previously synthesized 4-trifluoromethyl-2-(5-aryl-3-styryl-1H-pyrazol-1yl)-pyrimidines and six 5-aryl-3-styryl-1-carboxamidino-1H-pyrazole derivatives…”
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Synthesis of 2,2,2-trifluoroethyl 1H-pyrazole carboxylates: Insight into the mechanism of trichloromethyl group hydrolysis by Gonçalves, Helena A., Pereira, Bruna A., Teixeira, Wystan K.O., Moura, Sidnei, Flores, Darlene C., Flores, Alex F.C.

“…Synthesis of novel 2,2,2-trifluoroethyl 1H-pyrazol-5(3)-carboxylates from cyclocondensation between hydrazine hydrochloride and…”
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Synthesis of fatty trichloromethyl-β-diketones and new 1H-pyrazoles as unusual FAMEs and FAEEs by Flores, Alex F. C., Blanco, Rogerio F., Souto, Alynne A., Malavolta, Juliana L., Flores, Darlene C.

“…The efficient synthesis of new fatty 1,1,1-trichloro-4-methoxy-3-alken-2-ones [Cl3CC(O)C(R²)=C(R¹)OMe, where R¹ = n-hexyl, heptyl, nonyl, undecyl, tridecyl and…”
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Efficient synthesis of new biheterocyclic 1-(5-hydroxy-5-trifluoromethyl-4,5-dihydropyrazol-1-yl)-3-(6-trifluoro methylpyrimidin-4-yl)-propan-1-ones by Malavolta, Juliana L., Souto, Alynne A., de Mello, Debora L., Flores, Darlene C., Flores, Alex F.C.

“…Cyclocondensation between two different 3-[6-trifluoromethyl-2-(substituted)pyrimidin-4-yl]propanoylhydrazides derived from levulinic acid and versatile…”
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Synthesis of Fatty Trichloromethyl-β-diketones and New 1 H -Pyrazoles as Unusual FAMEs and FAEEs by Flores, Alex F. C., Blanco, Rogerio F., Souto, Alynne A., Malavolta, Juliana L., Flores, Darlene C.

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A Straightforward and Efficient Synthesis of 3-(Pyrimidinyl)propanoates from Levulinic Acid by Flores, Alex F. C., Malavolta, Juliana L., Souto, Alynne A., Goularte, Rayane B., Flores, Darlene C., Piovesan, Luciana A.

“…The cyclocondensation of methyl 7,7,7-trifluoro-4-methoxy-6-oxo-4-heptenoate and methyl 7,7,7-trichloro-4-methoxy-6-oxo-4-heptenoate, derived from levulinic…”
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Efficient synthesis of new 1-alkyl(aryl)-5-(3,3,3-trihalo-2-oxopropylidene)-1H-pyrrol-2(5H)-ones by Flores, Alex F.C., Pizzuti, Lucas, Piovesan, Luciana A., Flores, Darlene C., Malavolta, Juliana L., Pereira, Claudio M.P.

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Efficient synthesis of new 1-alkyl(aryl)-5-(3,3,3-trihalo-2-oxopropylidene)-1 H-pyrrol-2(5 H)-ones by Flores, Alex F.C., Pizzuti, Lucas, Piovesan, Luciana A., Flores, Darlene C., Malavolta, Juliana L., Pereira, Claudio M.P.

“…The synthesis of 1-alkyl(aryl)-5-(3,3,3-trihalo-2-oxopropylidene)-1 H-pyrrol-2(5 H)-ones 5, 6a– d from…”
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