Two clerodane diterpenes and flavonoids from Croton brasiliensis
摘要：
Two new clerodane diterpenes, crotobrasilin A and crotobrasilin B, were isolated in addition to four...
doi：
10.1590/S0103-50532005000800021
作 者：
Conserva, Lucia M.;U...
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Journal of the Brazilian Chemical Society
Clean and atom-economic synthesis of alpha-phenylselenoacrylonitriles and alpha-phenylseleno- alpha,beta-unsaturated esters by knoevenagel reaction under solvent-free conditions
摘要：
A simple, clean and efficient method has been developed for the synthesis of a-phenylselenoacrylonit...
doi：
10.1590/S0103-50532005000500027
作 者：
Lenardão, Eder J.;Sa...
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期刊标题：
Journal of the Brazilian Chemical Society
New catalysts based on silicon carbide support for improvements in the sulfur recovery: new silicon carbide nanotubes as catalyst support for the trickle-bed H2S oxidation
摘要：
Silicon carbide nanotubes were prepared via a gas-solid reaction between SiO vapor and carbon nanotu...
doi：
10.1590/S0103-50532005000400003
作 者：
Pham-Huu, Cuong;Nhut...
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Journal of the Brazilian Chemical Society
Antioxidant therapy: myth or reality?
摘要：
New terms such as oxidative stress, antioxidant products or pro-oxidant risks are becoming familiar ...
doi：
10.1590/S0103-50532005000500004
作 者：
Center of Pharmaceut...
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期刊标题：
Journal of the Brazilian Chemical Society
Improved stability of PtOx sol-gel-modified diamond electrodes covered with a Nafion® film
摘要：
The modification of boron-doped diamond (BDD) electrodes with platinum oxide particles deposited by ...
doi：
10.1590/S0103-50532005000600003
作 者：
USP, São Carlos, Bra...
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Journal of the Brazilian Chemical Society
Understanding the induction period of the Belousov-Zhabotinsky reaction
摘要：
In this paper we present the dependence of the induction time of the Belousov-Zhabotinsky reaction (...
doi：
10.1590/S0103-50532005000200014
作 者：
Universidad Nacional...
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Journal of the Brazilian Chemical Society
Dimeric boronates derived from the reaction of schiff bases and boronic acids
摘要：
The one-pot synthesis of dimeric boron complexes is reported. The compounds were obtained by reactio...
doi：
10.1590/S0103-50532005000300020
作 者：
Barba, Victor;IPN, M...
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期刊标题：
Journal of the Brazilian Chemical Society
Determination of trace lead in waters by flow injection hydride generation atomic absorption spectrometry
摘要：
A flow injection system for lead determination at concentration levels of mg L-1 is proposed using H...
doi：
10.1590/S0103-50532005000400004
作 者：
Carrijo, Jane F. Nev...
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Journal of the Brazilian Chemical Society
Synthesis and spectroscopic characterization of tin(II) and tin(IV) complexes containing 2,3,5,6-tetrakis(alpha-pyridyl)pyrazine as a bridging ligand
摘要：
In this work we investigated the reactivity of the nitrogen heterocyclic ligand 2,3,5,6-tetrakis(a-p...
doi：
10.1590/S0103-50532005000600012
作 者：
Bitzer, Rodrigo S.;U...
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期刊标题：
Journal of the Brazilian Chemical Society
Adsorption of phosphoric acid on niobium oxide coated cellulose fiber: preparation, characterization and ion exchange property
摘要：
The preparation procedures for a hybrid organic-inorganic cellulose-niobium oxide (Cel/Nb2O5) and it...
doi：
10.1590/S0103-50532005000500021
作 者：
Gushikem, Yoshitaka;...
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期刊标题：
Journal of the Brazilian Chemical Society
