Search Results - "Rampon, S"

Light‐Mediated Seleno‐Functionalization of Organic Molecules: Recent Advances by Rafique, Jamal, Rampon, Daniel S., Azeredo, Juliano B., Coelho, Felipe L., Schneider, Paulo H., Braga, Antonio L.

“…Organoselenium compounds constitute an important class of substances with applications in the biological, medicinal and material sciences as well as in modern…”
Get full text

Production of 5-(hydroxymethyl)-furfural from water-soluble carbohydrates and sugarcane molasses by Gomes, Gustavo Rodrigues, Rampon, Daniel S., Ramos, Luiz Pereira

“…[Display omitted] •ZnCl2/HCl and AlCl3/HCl were used in a biphasic system to produce HMF from water-soluble carbohydrates.•No matrix interference was observed…”
Get full text

Trithiocarbonate Anion as a Sulfur Source for the Synthesis of 2,5-Disubstituted Thiophenes and 2-Substituted Benzo[ b ]thiophenes by Paixão, Douglas B, Rampon, Daniel S, Salles, Helena D, Soares, Eduardo G O, Bilheri, Filipe N, Schneider, Paulo H

“…The trithiocarbonate anion (CS ) was generated from CS and KOH in dimethyl sulfoxide by a simple method and used as a novel synthetic equivalent of the S for…”
Get full text

Chalcogenoacetylenes Obtained by Indium(III) Catalysis: Dual Catalytic Activation of Diorgano Dichalcogenides and Csp-H Bonds by Rampon, Daniel S., Giovenardi, Rodrigo, Silva, Tiago L., Rambo, Raoní S., Merlo, Aloir A., Schneider, Paulo H.

“…A new approach for the one‐pot synthesis of alkynyl chalcogenides, exemplified mainly by selenides, was developed in which dual activation of diorgano…”
Get full text

Crystal structures of 3-halo-2-organochalcogenylbenzo[ b ]chalcogenophenes by Luz, Eduardo Q, Santana, Francielli S, Silverio, Gabriel L, Tullio, Suelen C M C, Iodice, Bianca, Prola, Liziê D T, Barbosa, Ronilson V, Rampon, Daniel S

“…The structure of the title compounds 3-bromo-2-(phenyl-sulfan-yl)benzo[ ]thiophene (C H BrS ; ), 3-iodo-2-(phenyl-sulfan-yl)benzo[ ]thio-phene (C H IS ; ),…”
Get full text

An evaluation of the chalcogen atom effect on the mesomorphic and electronic properties in a new homologous series of chalcogeno esters by Rampon, Daniel S, Rodembusch, Fabiano S, Gonçalves, Paulo F. B, Lourega, Rogério V, Merlo, Aloir A, Schneider, Paulo H

“…A series of chalcogeno esters 1a, 6a and 6b have been synthesized in a straightforward manner. Polarized-light optical microscopy (POM) and differential…”
Get full text

Copper-Mediated Intramolecular Interrupted CuAAC Selanylation by Teixeira, Wystan K. O., de Albuquerque, Danilo Yano, Zukerman-Schpector, Julio, Seckler, Diego, Rampon, Daniel S., Schwab, Ricardo S.

“…We, herein, describe a copper-mediated domino CuAAC intramolecular selanylation for the synthesis of unprecedented fused…”
Get full text

CS 2 /KOH System-Promoted Stereoselective Synthesis of ( E )-Alkenes from Diarylalkynes and a "Hidden" Zinin-Type Reduction of Nitroarenes into Arylamines by Paixão, Douglas B, Soares, Eduardo G O, Silva, Caren D G, Peglow, Thiago J, Rampon, Daniel S, Schneider, Paulo H

“…In this work, we present the CS /KOH system as a practical and efficient reductive medium for obtaining ( )-alkenes from alkynes through a highly…”
Get full text

Palladium-Catalyzed Direct Arylation of Selenophene by Rampon, Daniel S, Wessjohann, Ludger A, Schneider, Paulo H

“…An efficient and convenient method was developed for the regioselective formation of 2-aryl- or 2,5-diarylselenophenes via a palladium-catalyzed direct…”
Get full text

Palladium-Catalyzed Direct Selanylation of Chalcogenophenes and Arenes Assisted by 2‑(Methylthio)amide by Badshah, Gul, Gomes, Carla M. B., Ali, Sher, Luz, Eduardo Q., Silvério, Gabriel L., Santana, Francielli S., Seckler, Diego, Paixão, Douglas B., Schneider, Paulo H., Rampon, Daniel S.

“…The direct and selective conversion of a C–H bond into a C–Se bond remains a significant challenge, which is even more intricate with substrates having an…”
Get full text

CS2/KOH System-Promoted Stereoselective Synthesis of (E)‑Alkenes from Diarylalkynes and a “Hidden” Zinin-Type Reduction of Nitroarenes into Arylamines by Paixão, Douglas B., Soares, Eduardo G. O., Silva, Caren D. G., Peglow, Thiago J., Rampon, Daniel S., Schneider, Paulo H.

“…In this work, we present the CS2/KOH system as a practical and efficient reductive medium for obtaining (E)-alkenes from alkynes through a highly…”
Get full text

Silver-catalyzed direct selanylation of indoles: synthesis and mechanistic insights by Rios, Elise Ane Maluf, Gomes, Carla M. B, Silvério, Gabriel L, Luz, Eduardo Q, Ali, Sher, D'Oca, Caroline da Ros Montes, Albach, Breidi, Campos, Renan B, Rampon, Daniel S

“…Herein we describe the Ag( i )-catalyzed direct selanylation of indoles with diorganoyl diselenides. The reaction gave 3-selanylindoles with high…”
Get full text

Synthesis of novel fatty acid 3,4-dihydropyrimidin-2-(1 H )-one and antitumoral activity against breast and gastric cancer cells by Rios, E A M, Dea, C M, Dos Santos, E R F B, D'Oca, M G M, Rampon, D S, Nachtigall, F M, Santos, L S, Guzman, L, Moore-Carrasco, R, Rebolledo-Mira, D, D'Oca, C R M

“…Monastrol is the best-known small compound from the dihydropyrimidinones/thiones (DHPMs) heterocycle family, a cell-permeable molecule recognized as an…”
Get full text

One‐Pot Synthesis of 3‐Halo‐2‐organochalcogenylbenzo[b]chalcogenophenes from 1‐(2,2‐Dibromovinyl)‐2‐organochalcogenylbenzenes by Luz, Eduardo Q., Silvério, Gabriel L., Seckler, Diego, Lima, David B., Santana, Francielli S., Barbosa, Ronilson V., Montes D'Oca, Caroline R., Rampon, Daniel S.

“…A transition‐metal‐free one‐pot synthesis of 3‐halo‐2‐organochalcogenylbenzo[b]chalcogenophenes has been developed using…”
Get full text

Synthesis of 2-Substituted 1,3-Benzoselenazoles from Carboxylic Acids Promoted by Tributylphosphine by Schwartz Radatz, Cátia, Rampon, Daniel S., Balaguez, Renata A., Alves, Diego, Schneider, Paulo Henrique

“…We report a general, practical, and simple metal‐free method for the synthesis of 2‐substituted 1,3‐benzoselenazoles by the reaction of…”
Get full text

Thermal, mechanical, and water vapor barrier behavior of polypropylene composite containing modified kaolinite by Albach, Breidi, Munaro, Marilda, Santos, Pedro H., Zawadzki, Sônia F., Schreiner, Wido H., Rampon, Daniel S., Barbosa, Ronilson V.

“…ABSTRACT Polypropylene composites containing modified kaolinite were prepared using melt processing and the morphological, thermal, mechanical and their water…”
Get full text

Dipolar vinyl sulfur fluorescent dyes. Synthesis and photophysics of sulfide, sulfoxide and sulfone based D–π–A compounds by Monçalves, Matias, Zanotto, Gabriel M., Toldo, Josene M., Rampon, Daniel S., Schneider, Paulo H., Gonçalves, Paulo F. B., Rodembusch, Fabiano S., Silveira, Claudio C.

“…New vinyl sulfides and sulfoxides were obtained in good yields using the Horner–Wadsworth–Emmons (HWE) reaction. The vinyl sulfides and sulfoxides presented…”
Get full text

Correction: Dipolar vinyl sulfur fluorescent dyes. Synthesis and photophysics of sulfide, sulfoxide and sulfone based D-π-A compounds by Monçalves, Matias, Zanotto, Gabriel M, Toldo, Josene M, Rampon, Daniel S, Schneider, Paulo H, Gonçalves, Paulo F. B, Rodembusch, Fabiano S, Silveira, Claudio C

“…Correction for 'Dipolar vinyl sulfur fluorescent dyes. Synthesis and photophysics of sulfide, sulfoxide and sulfone based D-π-A compounds' by Matias Monçalves…”
Get full text

Selenides and diselenides containing oxadiazoles: a new class of functionalised materials by Frizon, Tiago E., Rampon, Daniel S., Gallardo, Hugo, Merlo, Aloir A., Schneider, Paulo H., Rodrigues, Oscar E.D., Braga, Antonio L.

“…A simple and efficient procedure for the synthesis of a new class of organoselenium liquid crystal compounds was developed. The coupling of aryl bromides with…”
Get full text

Fe(III)-Catalyzed direct C3 chalcogenylation of indole: The effect of iodide ions by Luz, Eduardo Q., Seckler, Diego, Araújo, Janylson Souza, Angst, Leonardo, Lima, David B., Maluf Rios, Elise Ane, Ribeiro, Ronny R., Rampon, Daniel S.

“…A mild and efficient iron (III)-catalyzed C3 chalcogenylation of indoles has been developed and the role of the iodide ions in this transformation was…”
Get full text