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Metal halide hydrates as lewis acid catalysts for the conjugated friedel-crafts reactions of indoles and activated olefins
- 摘要：
- Metal halide hydrates such as SnCl2路2H2O, MnCl2路4H2O, SrCl2路6H2O, CrCl2路6H2O, CoCl2路6H2O e CeCl3路7H2...
- doi：
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10.1590/S0103-50532011000400003
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Universidade Federal...
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Journal of the Brazilian Chemical Society
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Critical evaluation of the oxygen-enhanced combustion in gas burners for industrial applications and heating systems
- 摘要：
- The concept of energetic efficiency in equipments is highlighted nowadays, due to its implication wi...
- doi：
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10.1590/S0103-50532011001000003
- 作 者：
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Pereira, Pedro A. P....
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Journal of the Brazilian Chemical Society
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Acetalization of hexanal with 2-ethyl hexanol catalyzed by solid acids
- 摘要：
- The catalyst activity of solid acids such as niobium phosphate and Amberlyst 35, an ion exchange res...
- doi：
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10.1590/S0103-50532011000200023
- 作 者：
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Barros, Alessandro O...
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Journal of the Brazilian Chemical Society
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Quantitative determination of some water-soluble B vitamins by kinetic analytical method based on the perturbation of an oscillatory reaction
- 摘要：
- A novel procedure for kinetic determination of some water-soluble vitamins of the B-group (thiamine ...
- doi：
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10.1590/S0103-50532011000100005
- 作 者：
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Kolar-Anić, Ljiljana...
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- 期刊标题：
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Journal of the Brazilian Chemical Society
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Determination of p-phenylenediamine by perturbation of a non-equilibrium stationary state in the B-Z reaction
- 摘要：
- A convenient method for determination of p-phenylenediamine (PPD) in wastewater has proposed, based ...
- doi：
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10.1590/S0103-50532011000400006
- 作 者：
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Northwest Normal Uni...
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- 期刊标题：
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Journal of the Brazilian Chemical Society
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Chemometric analysis of ESIMS and NMR data from Piper species
- 摘要：
- The metabolomic profiling based on the application of multivariate analysis (principal component ana...
- doi：
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10.1590/S0103-50532011001200019
- 作 者：
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Scotti, Marcus T.;In...
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Journal of the Brazilian Chemical Society
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Chemical constituents from branches of Maytenus gonoclada (Celastraceae) and evaluation of antimicrobial activity
- 摘要：
- Six pentacyclic triterpenes were isolated from branches of Maytenus gonoclada (Celastraceae) and all...
- doi：
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10.1590/S0103-50532011000500018
- 作 者：
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Lula, Ivana S;Univer...
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Journal of the Brazilian Chemical Society
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Spatial and seasonal variations of pharmaceuticals and endocrine disruptors in the Atibaia River, São Paulo State (Brazil)
- 摘要：
- A single run optimization chromatographic method for the determination of 15 emerging contaminants i...
- doi：
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10.1590/S0103-50532011000800008
- 作 者：
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Jardim, Wilson F.;Mo...
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- 期刊标题：
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Journal of the Brazilian Chemical Society
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Synthesis of 1,3-diynes via detelluration of bis(ethynyl)tellurides
- 摘要：
- The synthesis of symmetric conjugated diyne systems with electron-withdrawing or electron-donating s...
- doi：
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10.1590/S0103-50532011000800006
- 作 者：
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Universidade Federal...
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- 期刊编号：
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- 期刊标题：
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Journal of the Brazilian Chemical Society
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A new megastigmane diglycoside from Litsea glutinosa (Lour.) C. B. Rob.
- 摘要：
- Phytochemical study on the leaves and twigs of afforded the new megastigmane diglycoside (6S, 7E, 9R...
- doi：
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10.1590/S0103-50532011001100030
- 作 者：
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Liao, Zhen;Yunnan Un...
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Journal of the Brazilian Chemical Society
