Zobrazeno 1 - 10
of 14
pro vyhledávání: '"David B. Lima"'
Autor:
Patrícia C. Silva, Elton L. Borges, David B. Lima, Raquel G. Jacob, Eder J. Lenardão, Gelson Perin, Márcio S. Silva
Publikováno v:
ARKIVOC, Vol 2016, Iss 5, Pp 376-389 (2016)
Externí odkaz:
https://doaj.org/article/bda69410d1314d43a98ee0fda6749de5
Autor:
Gabriel L. Silvério, Ronny R. Ribeiro, Diego Seckler, Breidi Albach, Daniel S. Rampon, Gul Badshah, Emerson A. Abreu, Eduardo Q. Luz, David B. Lima
Publikováno v:
Synlett. 32:940-946
We have developed an efficient chalcogenylation of electron-rich naphthalene derivatives catalyzed by FeCl3 and KI. The methodology provides access to several nonsymmetrical diorganoyl chalcogenides (S, Se) by selective C1 chalcogenylation of 2-napht
Autor:
Daniel S. Rampon, Eduardo Q. Luz, Caroline da Ros Montes D'Oca, Ronilson Vasconcelos Barbosa, David B. Lima, Diego Seckler, Gabriel L. Silvério, Francielli S. Santana
Publikováno v:
Advanced Synthesis & Catalysis. 363:2610-2618
Autor:
Diego Seckler, Gul Badshah, Priscila Fiori, Eduardo Q. Luz, Pedro Henrique Vianna dos Santos, Daniel S. Rampon, David B. Lima
Publikováno v:
ChemistrySelect. 4:13558-13563
Autor:
Diego Seckler, Eduardo Q. Luz, Elise Ane Maluf Rios, David B. Lima, Janylson Souza Araújo, Daniel S. Rampon, Ronny R. Ribeiro, Leonardo Angst
Publikováno v:
Tetrahedron. 75:1258-1266
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 investigated. EPR experiments revealed the reduction of Fe(III) to Fe(II) under the reaction condit
Autor:
Fernanda Severo Sabedra Sousa, Lucielli Savegnago, César Augusto Brüning, Roberta Gonçalves Anversa, David B. Lima, Eder J. Lenardão, Paloma Taborda Birmann
Publikováno v:
Journal of Pharmacy and Pharmacology. 70:901-909
Background Pain is one of the most prevalent, costly and disabling conditions that reduces quality of life. Although there are many analgesics available, there is some concern regarding their efficacy, safety and side effects. Organic selenium compou
Autor:
Filipe Penteado, David B. Lima, Marcelo M. Vieira, Gelson Perin, Diego Alves, Claudio Santi, Eder J. Lenardão
Publikováno v:
European Journal of Organic Chemistry. 2017:3830-3836
Herein is reported the first decarboxylative oxidation of α-keto acids promoted by sodium metabisulfite (Na2S2O5) to obtain 2-substituted benzothiazoles and benzoselenazoles. Diaryl disulfides and diselenides were used as chalcogen sources and the d
Autor:
Diego Alves, David B. Lima, Daniel S. Rampon, Renata A. Balaguez, Paulo H. Schneider, Eduardo Q. Luz
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 48(27)
Transition metal catalysed C–H functionalization has reached an exciting level of sophistication, and, today, it represents a paradigm shift from the standard logic of synthetic chemistry. The direct conversion of C–H bonds into C–heteroatoms r
Autor:
Eder J. Lenardo, David B. Lima, Mrcio S. Silva, Raquel G. Jacob, Patrcia C. Silva, Elton L. Borges, Gelson Perin
Publikováno v:
ARKIVOC, Vol 2016, Iss 5, Pp 376-389 (2016)
Autor:
Raquel G. Jacob, David B. Lima, Lucielli Savegnago, Eder J. Lenardão, Sergio F. Fonseca, Gelson Perin, Diego Alves
Publikováno v:
New Journal of Chemistry. 39:3043-3050
Herein we describe the results on the synthesis and the evaluation of the antioxidant activity of several organochalcogen-containing chrysin derivatives (Se and Te). The semi-synthetic compounds were easily synthesized in good to excellent yields by