Zobrazeno 1 - 10 of 17 pro vyhledávání: '"Thiago C. Rozada"'
1
Synthesis, Characterization, Antioxidant Activity and Conformational Study of 4-Hydroxychalcone
Autor: André Luis Kerek, Thiago C. Rozada, Barbara C. Fiorin
Publikováno v: Orbital: The Electronic Journal of Chemistry, Vol 13, Iss 2, Pp 120-123 (2021)
The objective of this work was to develop a synthesis, characterization, and conformational study of 4-hydroxychalcone. The chalcone was obtained using Claisen-Schmidt reaction. The product was characterized by IR and NMR spectroscopy. The latter tec
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4117ddc7eecb575f81f9b9beee7acbed
http://orbital.ufms.br/index.php/Chemistry/article/view/1485
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2
Theoretical Study on the Conformational Equilibrium of 1’, 2' and 3'-Nitro-4-hydroxy-3-methoxy Chalcone Isomers
Autor: Hualace Vinicius Emiliano, Barbara C. Fiorin, Thiago C. Rozada, Raphaela Pereira Guaringue
Publikováno v: Orbital: The Electronic Journal of Chemistry, Vol 13, Iss 2, Pp 182-187 (2021)
This paper presents the conformational analysis of three chalcone compounds, 1'-nitro-4-hydroxy-3-metoxychalcoea (o-CHAL), 2'-nitro-4-hydroxy-3-metoxychalcone (m-CHAL) and 3'-nitro-4-hydroxiy3-metoxychalcone (p-CHAL). By employing theoretical calcula
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cd25b4f63f848c8d9091efe71f42a06
http://orbital.ufms.br/index.php/Chemistry/article/view/1548
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3
Mechanistic Investigation of DBU-Based Ionic Liquids for Aza-Michael Reaction: Mass Spectrometry and DFT Studies of Catalyst Role
Autor: Eduardo Jorge Pilau, Fernanda A. Rosa, Gisele F. Gauze, Thiago C. Rozada, João Raul B. de Souza, Augusto A. Cândido, Ernani A. Basso, Andrew M.F. Rozada
Publikováno v: Journal of the Brazilian Chemical Society, Volume: 31, Issue: 9, Pages: 1796-1804, Published: 19 AUG 2020
Journal of the Brazilian Chemical Society v.31 n.9 2020
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)-based ionic liquids (ILs) has exhibited a high catalytic activity in the aza-Michael reactions compared to conventional catalysts and with imidazole-based ILs. In the present work DBU-based ILs showed high cat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98a118b288640982162a576a5e739fd7
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532020000901796&lng=en&tlng=en
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4
Sol gel synthesis of 3-n-propyl(4-aminomethyl)pyridinium silsesquioxane chloride and the enhanced electrocatalytic activity of LbL films
Autor: Ariane Caroline Ribicki, Sérgio Toshio Fujiwara, Ruben Auccaise Estrada, Christiana Andrade Pessoa, João Paulo Winiarski, Viviane Jandira Van Haandel, Thiago C. Rozada, Bianca Gurski Chemin, Barbara C. Fiorin
Publikováno v: Journal of Sol-Gel Science and Technology. 87:216-229
A silsesquioxane based on a silica matrix and 4-(aminomethyl)pyridine group was successfully synthesized using the sol–gel process with the proposal of two different carbonic chain arrangments in the structure of the silica polymer, observed employ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::66ddb7d39feea80bcf23f10e30c9b09b
https://doi.org/10.1007/s10971-018-4706-y
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5
Experimental and Theoretical Study of the Reaction Kinetics of 2,5-Dimethylterephthalonitrile Bromination Compared to 1,4-Dimethylbenzene Bromination
Autor: Thiago C. Rozada, Leandro Scorsin, Barbara C. Fiorin, Cibeli M. A. Villalba, Jarem Raul Garcia, Fabio Santana Dos Santos
Publikováno v: Synthesis. 50:1259-1263
Experimental and theoretical studies showed the differences observed in the benzylic tetrabromination reactions in 2,5-dimethylterephthalonitrile compared to 1,4-dimethylbenzene. It was observed that the compound containing the nitrile substituent un
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac1a91c6e9224d3ba9b4cf578d02ea17
https://doi.org/10.1055/s-0036-1591750
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6
Conformational equilibrium of phenylacetic acid and its halogenated analogues through theoretical studies, NMR and IR spectroscopy
Autor: Barbara C. Fiorin, Ulisses Z. Melo, Thiago C. Rozada, Ernani A. Basso, Mariana N. Levandowski
Publikováno v: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 174:138-146
This paper presents a study on the conformational preferences of phenylacetic acid (PA) and its halogenated analogues (FPA, CPA, BPA). To clarify the effects that rule these molecules' behaviour, theoretical calculations were used, for both the isola
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::965f710c5a3206448e493c0dcfc3c7a5
https://doi.org/10.1016/j.saa.2016.10.050
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7
Stereoelectronic effects of the glycosidic linkage on the conformational preference of d-sucrose
Autor: Roberto Rittner, Ernani A. Basso, Rodrigo M. Pontes, Thiago C. Rozada
Publikováno v: RSC Advances. 6:112806-112812
The stereoelectronic effects involved in the conformations shown by D-sucrose were analysed at the M06-2X/6-31++G(d,p) level, both under vacuum and in water with the continuum solvation model IEF-PCM, and employing the natural bond orbital theory (NB
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1620f19d317936f4c85e8ecff3b49b16
https://doi.org/10.1039/c6ra24413k
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9
Facial Selectivity between Carbohydrates and Aromatic Amino Acids Explained by a Combination of NCI, NBO and EDA Techniques with NMR Spectroscopy
Autor: Rodrigo M. Pontes, Ernani A. Basso, Ulisses Z. Melo, Thiago C. Rozada, Roberto Rittner
Publikováno v: Journal of the Brazilian Chemical Society, Volume: 30, Issue: 5, Pages: 948-967, Published: 08 APR 2019
Journal of the Brazilian Chemical Society v.30 n.5 2019
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
The influence of electrostatic and dispersion components of intermolecular interactions on the recognition of carbohydrates by aromatic protein residues is important for many biological processes. Interactions between glucose and galactose and aromat
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdb46be85dcc63d8107dfb53749af19b
https://doi.org/10.21577/0103-5053.20180241
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10
Theoretical aspects of the unexpected regiospecific synthesis of pyrazole-5-carboxylates from unsymmetrical enaminodiketones
Autor: Ernani A. Basso, Gisele F. Gauze, Davana S. Gonçalves, Thiago C. Rozada, Fernanda A. Rosa, Rodrigo M. Pontes, Marcos A. P. Martins, Michael J. V. da Silva
Publikováno v: Structural Chemistry. 26:1007-1011
Pyrazoles are heterocycles with economic importance because of the wide applications of such compounds in the pharmaceutical and agrochemical industries. Pyrazoles can be prepared from the cyclocondensation of unsymmetrical enaminodiketones with hydr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06038a682259105571d7ca9b5666abdd
https://doi.org/10.1007/s11224-014-0558-4
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