Metal-free catalytic oxidation of sulfides to sulfoxides with ammonium nitrate, ammonium hydrogen sulfate and ammonium bromide as catalyst
摘要：
A general and metal-free catalytic oxidation of aliphatic and aromatic sulfides to their correspondi...
doi：
10.1590/S0103-50532010000100006
作 者：
Ghorbani-Choghamaran...
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Journal of the Brazilian Chemical Society
B2O3/Al2O3 as a new, highly efficient and reusable heterogeneous catalyst for the selective synthesis of β-enamino ketones and esters under solvent-free conditions
摘要：
Boron oxide adsorbed on alumina (B2O3/Al2O3 ) has been found to be a new and highly efficient hetero...
doi：
10.1590/S0103-50532010000800021
作 者：
Gao, Wen-Xia;Zhang, ...
作者机构：
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期刊标题：
Journal of the Brazilian Chemical Society
Electron paramagnetic resonance characterization of a humic acid-type polymer model
摘要：
Humic acid-type polymer models have been shown to be similar to natural humic acids (HA) in terms of...
doi：
10.1590/S0103-50532010001200018
作 者：
Embrapa Instrumentaç...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Palladium catalyzed Suzuki cross-coupling of 3-iodo-2-(methylthio)-benzo[b]furan derivatives: synthesis of 3-aryl-2-(methylthio)benzo[b]furans
摘要：
A selective and efficient method for the synthesis of 3-aryl-2-(methylthio)benzo[b]furans derivative...
doi：
10.1590/S0103-50532010000900006
作 者：
Brandão, Ricardo;Gay...
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期刊标题：
Journal of the Brazilian Chemical Society
A Contribution to the estimation of binary halide and pseudo-halide equilibrium constants using a linear extrapolation methodology
摘要：
The molar single ion activity coefficient (yF) of fluoride ions was determined at 25聽掳C and ionic st...
doi：
10.1590/S0103-50532010000100020
作 者：
Ortega, Manuel M.;Te...
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期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Identification and quantification of furanic compounds in tequila and mezcal using spectroscopy and chemometric methods
摘要：
In this paper, two Mexican white spirits with appellationd'origen contr么l茅e (AOC), i.e., tequila and...
doi：
10.1590/S0103-50532010000600018
作 者：
Centro de Investigac...
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期刊标题：
Journal of the Brazilian Chemical Society
Simple method for fast deprotection of nucleosides by triethylamine-catalyzed methanolysis of acetates in aqueous medium
摘要：
A straightforward methodology for deacetylation of protected ribonucleosides was developed based on ...
doi：
10.1590/S0103-50532010000500013
作 者：
Meier, Lidiane;Baldi...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Macroporous MnO2 electrodes obtained by template assisted electrodeposition for electrochemical capacitors
摘要：
Macroporous MnO2 electrodes prepared by template-assisted electrodeposition using spherical polystyr...
doi：
10.1590/S0103-50532010000900016
作 者：
Petri, Denise F. S;T...
作者机构：
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期刊标题：
Journal of the Brazilian Chemical Society
Diastereoselective synthesis of β-piperonyl-γ-butyrolactones from morita-baylis-hillman adducts. highly efficient synthesis of (±)-yatein, (±)-podorhizol and (±)-epi-podorhizol
摘要：
Starting from a Morita-Baylis-Hillman adduct we describe a simple and very efficient method for the ...
doi：
10.1590/S0103-50532010001200021
作 者：
Universidade Estadua...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
Excellent combination of HPLC-RSD-DAD-ESI/MS and HSCCC experiments to screen and identify radical scavengers from Neo-Taraxacum siphonanthun
摘要：
Our previous research found that the crude extract of Neo-T. siphonanthun exhibited an effective DPP...
doi：
10.1590/S0103-50532010000800017
作 者：
Shi, Shuyun;Central ...
作者机构：
期刊编号：
期刊标题：
Journal of the Brazilian Chemical Society
