New triterpene and antibacterial labdenoic acid derivatives from Moldenhawera nutans

期刊论文
摘要:
A new triterpene derivative (22b-hydroxylupeol) was isolated from the MeOH extract of stems of Molde...
doi:
10.1590/S0103-50532007000800022
作 者:
David, Juceni P.;Lim...
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Journal of the Brazilian Chemical Society

3-Ishwarone and 3-Ishwarol, rare sesquiterpenes in essential oil from leaves of Peperomia oreophila Hensch.

期刊论文
摘要:
The essential oil from Peperomia oreophila leaves (Piperaceae) was submitted to fractionation in sil...
doi:
10.1590/S0103-50532007000300022
作 者:
Jardim Botânico do R...
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Journal of the Brazilian Chemical Society

Brazilian Chemistry: always shining brightly!

期刊论文
摘要:
doi:
10.1590/S0103-50532007000500001
作 者:
Alves, Oswaldo Luiz;...
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Journal of the Brazilian Chemical Society

Chemoselective oxidation of benzophenazines by m-CPBA: n-oxidation vs. oxidative cleavage

期刊论文
摘要:
Chemoselectivity is observed when a pyran-benzo[a]phenazine and a furan-benzo[a]phenazine from b-lap...
doi:
10.1590/S0103-50532007000400014
作 者:
Emery, Flávio S.;Sil...
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Journal of the Brazilian Chemical Society

Growth acceleration program: science education

期刊论文
摘要:
doi:
10.1590/S0103-50532007000800001
作 者:
Pinto, Angelo C.
作者机构:
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期刊标题:
Journal of the Brazilian Chemical Society

Use of Cu2+ as a metal ion probe for the EPR study of metal complexation sites in the double sulfite CuI 2SO3.CdII SO3 .2H2O

期刊论文
摘要:
An evaluation was made of the presence of paramagnetic ions in the host lattice of CuI2SO3.CdII SO3....
doi:
10.1590/S0103-50532007000300018
作 者:
Mangrich, Antonio S....
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期刊标题:
Journal of the Brazilian Chemical Society

Coumarins and xanthones from the seeds of Mammea siamensis

期刊论文
摘要:
A new coumarin, mammea E/BB cyclo D (1), together with five known compounds, mammea E/BA cyclo D (2)...
doi:
10.1590/S0103-50532007000500031
作 者:
Ponglimanont, Chanit...
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期刊标题:
Journal of the Brazilian Chemical Society

Pd-catalyzed Suzuki cross-Coupling reaction of bromostilbene: insights on the nature of the boron Species

期刊论文
摘要:
Arylboronate esters and arylborate salts can be used as partner for the Suzuki reaction of (E)-bromo...
doi:
10.1590/S0103-50532007000700021
作 者:
Universidade Federal...
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Journal of the Brazilian Chemical Society

Fe(III) hepthyldithocarbamate as a new collector for flotation separation and preconcentration of Cr, Cu, and Pb from fresh waters before their determination by ETAAS

期刊论文
摘要:
A method for determination of Cr, Cu and Pb in fresh waters, after flotation separation and preconce...
doi:
10.1590/S0103-50532007000600015
作 者:
Sts. Cyril and Metho...
作者机构:
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期刊标题:
Journal of the Brazilian Chemical Society

Chemical modifications of nimesulide

期刊论文
摘要:
We describe here the chemical modifications of nimesulide either via direct N-acylation or via a two...
doi:
10.1590/S0103-50532007000200021
作 者:
Pal, Sarbani;Periche...
作者机构:
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期刊标题:
Journal of the Brazilian Chemical Society
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