Search Results - "Nobre, Patrick C."

Selenomethoxylation of Alkenes Promoted by Oxone by Perin, Gelson, Santoni, Paolo, Barcellos, Angelita M., Nobre, Patrick C., Jacob, Raquel G., Lenardão, Eder J., Santi, Claudio

“…We describe herein an alternative method for the selenomethoxylation of unactivated alkenes using Oxone® as a stoichiometric oxidant. The electrophilic species…”
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Efficient Synthesis and Iodine-Functionalization of Pyrazoles via KIO3/PhSeSePh System under Acidic Conditions by Peglow, Thiago J, Thomaz, João Pedro S S C, Nobre, Patrick C, Scimmi, Cecilia, Santi, Claudio, Nascimento, Vanessa

“…This manuscript reports a novel method for the direct iodination of the C-4 pyrazole ring generated in situ by the reaction of 1,1,3,3-tetramethoxypropane and…”
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Telluride-Based Pillar[5]arene: A Recyclable Catalyst for Alkylation Reactions in Aqueous Solution by Nobre, Patrick C., Cordeiro, Pâmella, Chipoline, Ingrid C., Menezes, Victor, Santos, Kaila V. S., Ángel, Alix Y. Bastidas, Alberto, Eduardo E., Nascimento, Vanessa

“…The syntheses of previously unknown sulfide- and telluride-pillar­[n]­arenes are reported here. These macrocycles, among others, were tested as catalysts for…”
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UVA Light‐promoted Catalyst‐free Cyclization of Vinyl Selenides: Green and Efficient Synthesis of C3‐Unsubstituted 2‐Selanyl Benzochalcogenophenes by Perin, Gelson, Peglow, Thiago J., Penteado, Filipe, Nobre, Patrick C., Silva, Krigor B., Stach, Guilherme, Barcellos, Thiago, Lenardão, Eder J., Roehrs, Juliano A.

“…A metal‐ and catalyst‐free photo‐promoted cyclization of properly substituted vinyl selenides was developed using UVA irradiation. A total of eighteen new…”
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A greener protocol for the synthesis of phosphorochalcogenoates: Antioxidant and free radical scavenging activities by Mailahn, Daniela H., Iarocz, Lucas E.B., Nobre, Patrick C., Perin, Gelson, Sinott, Airton, Pesarico, Ana Paula, Birmann, Paloma T., Savegnago, Lucielli, Silva, Márcio S.

“…In this contribution, a metal- and base-free protocol has been developed for the synthesis of phosphorochalcogenoates (Se and Te) by using DMSO as solvent at…”
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Organochalcogen compounds from glycerol: Synthesis of new antioxidants by Nobre, Patrick C., Borges, Elton L., Silva, Cristian M., Casaril, Angela M., Martinez, Débora M., Lenardão, Eder J., Alves, Diego, Savegnago, Lucielli, Perin, Gelson

“…We describe here a simple method for the synthesis of glycerol derivatives containing an organochalcogen unit (Se, Te and S) using NaBH4 and PEG-400 as a…”
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Synthesis and Photophysical Evaluation of Dialkynyl‐N‐(het)arylpyrroles: Promising Key Compounds in Fluorescence Chemistry by Peglow, Thiago J., Nobre, Patrick C., Thomaz, João Pedro S. S. C., Vieira, Marcelo M., Junior, Henrique C. S., Dalberto, Bianca T., Schneider, Paulo H., Rodembusch, Fabiano S., Nascimento, Vanessa

“…In this work, we present a series of chromophores based on dialkynyl‐N‐(het)arylpyrrole, featuring diverse combinations of donor‐acceptor moieties. The study…”
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Antiparasitic activity of 1,3-dioxolanes containing tellurium in Trichomonas vaginalis by Sena-Lopes, Ângela, das Neves, Raquel Nascimento, Bezerra, Francisco Silvestre Brilhante, de Oliveira Silva, Mara Thais, Nobre, Patrick C, Perin, Gelson, Alves, Diego, Savegnago, Lucielli, Begnini, Karine Rech, Seixas, Fabiana Kommling, Collares, Tiago, Borsuk, Sibele

“…Abstract The increased prevalence of metronidazole-resistant infections has resulted in a search for alternative drugs for the treatment of trichomoniasis. In…”
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Synthesis of enantiomerically pure glycerol derivatives containing an organochalcogen unit: In vitro and in vivo antioxidant activity by Nobre, Patrick C., Vargas, Henrique A., Jacoby, Caroline G., Schneider, Paulo H., Casaril, Angela M., Savegnago, Lucielli, Schumacher, Ricardo F., Lenardão, Eder J., Ávila, Daiana S., Rodrigues Junior, Luiz B.L., Perin, Gelson

“…[Display omitted] We describe here the synthesis of enantiomerically pure chalcogenoethers obtained through the reaction of nucleophilic species of chalcogen…”
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Efficient Synthesis and Iodine‐Functionalization of Pyrazoles via KIO 3 /PhSeSePh System under Acidic Conditions by Peglow, Thiago J., Thomaz, João Pedro S. S. C., Nobre, Patrick C., Scimmi, Cecilia, Santi, Claudio, Nascimento, Vanessa

“…This manuscript reports a novel method for the direct iodination of the C‐4 pyrazole ring generated in situ by the reaction of 1,1,3,3‐tetramethoxypropane and…”
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Telluride-Based Pillar5arene: A Recyclable Catalyst for Alkylation Reactions in Aqueous Solution by Nobre, Patrick C, Cordeiro, Pâmella, Chipoline, Ingrid C, Menezes, Victor, Santos, Kaila V S, Ángel, Alix Y Bastidas, Alberto, Eduardo E, Nascimento, Vanessa

“…The syntheses of previously unknown sulfide- and telluride-pillar[n]arenes are reported here. These macrocycles, among others, were tested as catalysts for…”
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1,1-Dibromoalkenes as versatile reagents to a transition metal-free and stereoselective synthesis of (E)-1-bromo-1-selenoalkenes and ketene selenoacetals by Webber, Rodrigo, Peglow, Thiago J., Nobre, Patrick C., Barcellos, Angelita M., Roehrs, Juliano A., Schumacher, Ricardo F., Perin, Gelson

“…[Display omitted] •1,1-Dibromoalkenes as versatile reagents to synthesis of selenoalkenes.•Metal-free and selective method for the synthesis of…”
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Elemental Chalcogen (Se, S) in PEG-400 to the Synthesis of Seleno- and Thioflavones from 2-Chlorophenyl Ethynyl Ketone and Nucleophilic Species of Chalcogen by Nobre, Patrick, Peglow, Thiago, Bartz, Ricardo, Barcellos, Angelita, Jacob, Raquel, Silva, Márcio, Barcellos, Thiago, Perin, Gelson

“…An alternative green method was developed for the synthesis of thio- and selenoflavones by the ring closure of 2-chlorophenyl ethynyl ketone with NaHY (Y = S,…”
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