Zobrazeno 1 - 10
of 281
pro vyhledávání: '"Eder J, Lenardão"'
Up until a few decades ago, chalcogen chemistry was mainly represented by the chemistry of sulfur-containing compounds. However, with the rise in research around selenium and tellurium compound chemistry, the field has developed significantly as it c
Autor:
João M. Anghinoni, Paloma T. Birmann, Marcia J. da Rocha, Caroline S. Gomes, Michael J. Davies, César A. Brüning, Lucielli Savegnago, Eder J. Lenardão
Publikováno v:
Molecules, Vol 28, Iss 21, p 7349 (2023)
Selenium is an essential trace element in living organisms, and is present in selenoenzymes with antioxidant activity, like glutathione peroxidase (GPx) and thioredoxin reductase (TrxR). The search for small selenium-containing molecules that mimic s
Externí odkaz:
https://doaj.org/article/4d69848258fb40ef990658f970e2012f
Autor:
Loana I. Monzon, Nicole C. M. Rocha, Gabriela T. Quadros, Pâmela P. P. Nunes, Roberta Cargnelutti, Raquel G. Jacob, Eder J. Lenardão, Gelson Perin, Daniela Hartwig
Publikováno v:
Molecules, Vol 28, Iss 13, p 5036 (2023)
A general methodology to access valuable 4-(phenylchalcogenyl)tetrazolo[1,5-a]quinolines was developed by the reaction of 2-azidobenzaldehyde with phenylchalcogenylacetonitriles (sulfur and selenium) in the presence of potassium carbonate (20 mol%) a
Externí odkaz:
https://doaj.org/article/0d7f125de0304cf7988c0d4e3185f2e2
Autor:
Ricardo H. Bartz, Luiz H. Dapper, Jean C. Kazmierczak, Ricardo F. Schumacher, Gelson Perin, Samuel Thurow, Filipe Penteado, Eder J. Lenardão
Publikováno v:
Catalysts, Vol 13, Iss 3, p 520 (2023)
This review describes the recent advances in photocatalyzed reactions to form new carbon–sulfur and carbon–selenium bonds. With a total of 136 references, of which 81 articles are presented, the authors introduce in five sections an updated pictu
Externí odkaz:
https://doaj.org/article/a0d2b0eae08e442882b9e5973fbb6113
Autor:
Patrick C. Nobre, Henrique A. Vargas, Caroline G. Jacoby, Paulo H. Schneider, Angela M. Casaril, Lucielli Savegnago, Ricardo F. Schumacher, Eder J. Lenardão, Daiana S. Ávila, Luiz B.L. Rodrigues Junior, Gelson Perin
Publikováno v:
Arabian Journal of Chemistry, Vol 13, Iss 1, Pp 883-899 (2020)
We describe here the synthesis of enantiomerically pure chalcogenoethers obtained through the reaction of nucleophilic species of chalcogen (S, Se and Te), generated in situ from the respective diorganyl dichalcogenides, with (R)- and (S)-tosyl solke
Externí odkaz:
https://doaj.org/article/4897a3e712bc46e4b89c473b78be5b1f
Autor:
Eder J. Lenardão, Lucielli Savegnago, César A. Brüning, Paloma T. Birmann, Angela M. Casaril, Laura Abenante, Filipe Penteado
Publikováno v:
Current Medicinal Chemistry. 30:2357-2395
Abstract: Neurodegenerative and mental disorders are a public health burden with pharma-cological treatments of limited efficacy. Organoselenium compounds are receiving great at-tention in medicinal chemistry mainly because of their antioxidant and i
Autor:
Gelson Perin, Thiago J. Peglow, Ricardo H. Bartz, Roberta Cargnelutti, Eder J. Lenardão, and Ricardo F. Schumacher
Publikováno v:
ARKIVOC, Vol 2019, Iss 2, Pp 50-64 (2019)
Externí odkaz:
https://doaj.org/article/6c1ab6b260814751be978bb4915ed5d0
Autor:
Gelson Perin, Eder J. Lenardão, Daniela H. Mailahn, Daniela R. Araujo, Patrick C. Nobre, Caren A. R. Fonseca, Filipe Penteado, Cristiane Luchese, Ethel A. Wilhelm
Publikováno v:
Current Chemical Biology. 17:56-66
Background: We report the synthesis and antioxidant evaluation of 1-organoselanyl-naphthalen-2-ols. The title compounds were selectively prepared through the selenofunctionalization of 2-naphthol derivatives using benzeneseleninic acids as a selenium
Autor:
João M. Anghinoni, Sabrina S. Ferreira, Ricardo F. Schumacher, Bernardo A. Iglesias, Gelson Perin, Filipe Penteado, Eder J. Lenardão
Publikováno v:
New Journal of Chemistry. 47:6066-6072
A total of thirty-four 3-selanylimidazopyridines were easily prepared in 50–94% yields using bench stable arylseleninic acids as a selenium source.
Autor:
Helen A. Goulart, Daniela R. Araujo, Filipe Penteado, Raquel G. Jacob, Gelson Perin, Eder J. Lenardão
Publikováno v:
Molecules, Vol 26, Iss 24, p 7523 (2021)
Oxone is a commercially available oxidant, composed of a mixture of three inorganic species, being the potassium peroxymonosulfate (KHSO5) the reactive one. Over the past few decades, this cheap and environmentally friendly oxidant has become a power
Externí odkaz:
https://doaj.org/article/c62d1733bbf74342acde54feac920bc0