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| Welcome to JBCS |
Act number 11.502 of June 11, 2007, by altering
the structural organization of CAPES (The Brazilian
Federal Agency for Support and Evaluation of Graduate
Education), and by attributing to this agency the scope
to subsidize the Ministry of Education in formulating
policy and developing support activities for the formation
of high school teachers, has turned on some light at the
end of the tunnel.
In Brazil, 70% of all high school science teachers have
no specific degree in the area they are teaching. In Chemistry
and Physics, this percentage is even greater. The lack of
teachers and their poor backgrounds as well as the total lack
of science laboratories in almost all of the schools are just
two among many reasons why Brazil is placed among the
nations having the worst science performance, according to
PISA, the International Student Ranking Program.
(Read more at Editorial)
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Table of Contents with Graphical Abstracts
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2008, Volume 19, number 5
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A Concise Enantioselective Synthesis of (+)-endo-Brevicomin Accomplished
by a Tellurium/Metal Exchange Reaction
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Renan S. Ferrarini, Jefferson L. Princival, João V. Comasseto and
Alcindo A. Dos Santos |
| J.
Braz. Chem. Soc. 2008, 19, 811. |
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Web
release date:
June
2, 2008.
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Catalytic Enantioselective Arylations: Boron to Zinc Exchange as a Powerful
Tool for the Generation of Transferable Aryl Groups
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Márcio W. Paixão, Antonio L. Braga and Diogo S. Lüdtke |
| J.
Braz. Chem. Soc. 2008, 19, 813. |
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Web
release date: June
2, 2008.
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Hydroxylation of a Hederagenin Derived Saponin by a Xylareaceous Fungus
Found in Fruits of Sapindus saponaria
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Michael Murgu, Luiz F. Arruda Santos, Gezimar D. de Souza, Cristina Daolio,
Bernd Schneider, Antônio Gilberto Ferreira and Edson Rodrigues-Filho |
| J.
Braz. Chem. Soc. 2008, 19, 831. |
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Web
release date: March 25, 2008.
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Determination of Paracetamol at a Graphite-Polyurethane Composite Electrode
as an Amperometric Flow Detector
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Priscila Cervini and Éder Tadeu Gomes Cavalheiro |
| J.
Braz. Chem. Soc. 2008, 19, 836. |
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Web
release date: March 25, 2008.
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Infraspecific
Variability in the Essential Oil Composition of Lychnophora ericoides
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Cynthia C. G. V. Lyra, Roberto F. Vieira, Carolina B. A. de Oliveira, Suzana
C. Santos,
Jose C. Seraphin and Pedro H. Ferri |
| J.
Braz. Chem. Soc. 2008, 19, 842. |
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Web
release date: March 31, 2008.
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Characterization
of Carbon Nanotubes-Gold Nanoparticles Composite Film Modified Electrode
and Voltammetric Determination of Mefenamic Acid
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Jingjing Yu, Jiangwen Li, Faqiong Zhao and Baizhao Zeng |
| J.
Braz. Chem. Soc. 2008, 19, 849. |
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Web
release date: March 31, 2008.
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Determination
of Na and K in Biodiesel by Flame Atomic Emission Spectrometry and Microemulsion
Sample Preparation
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Eduardo Sidinei Chaves, Tatiana Dillenburg Saint’Pierre, Eder José
dos Santos, Luciano Tormen, Vera Lúcia Azzolin Frescura Bascuñan
and Adilson José Curtius |
| J.
Braz. Chem. Soc. 2008, 19, 856. |
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Web
release date: March 31, 2008.
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Zeolite Activation of Organometallics: Revisiting Substitution Kinetics
of
[Mo(CO)6] with Chemisorbed PMe3 in Dehydrated Na56Y
Zeolite
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Anthony L. Fernandez, Jianbin Hao, Roberta L. Parkes, Anthony J. Poë
and
(the late) Eduardo J. S. Vichi |
| J.
Braz. Chem. Soc. 2008, 19, 862. |
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Web
release date: April 15, 2008.
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Photoluminescence,
Photoabsorption and Photoemission Studies of Hydrazone Thin Film used
as Hole Transporting Material in OLEDs
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W. G. Quirino, C. Legnani, M. Cremona, R.Reyes, G. V. Mota, D. E. Weibel
and M. L. M. Rocco |
| J.
Braz. Chem. Soc. 2008, 19, 872. |
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Web
release date: April 18, 2008.
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Indium(III)-Catalyzed
Synthesis of N-Substituted Pyrroles under Solvent-Free Conditions
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Jiu-Xi Chen, Miao-Chang Liu, Xiao-Liang Yang, Jin-Chang Ding and Hua-Yue
Wu |
| J.
Braz. Chem. Soc. 2008, 19, 877. |
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Web
release date: April 18, 2008.
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Structural
and Energetic Analysis of Copper Clusters: MD Study of Cun (n = 2-45)
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Mustafa Böyükata and Jadson C. Belchior |
| J.
Braz. Chem. Soc. 2008, 19, 884. |
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Web
release date: April 18, 2008.
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Michael
Additions of Thiocompounds to a,b-Unsaturated
Carbonyl Compounds in
Aqueous Media: Stereoselectivity with Unambiguous Characterization by
NMR
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Queli Aparecida Rodrigues de Almeida, Maria Luiza de Oliveira Pereira, Ricardo
Bezerra Coelho,
Erika Martins de Carvalho, Carlos Roland Kaiser, Joel Jones Junior and Flavia
Martins da Silva |
| J.
Braz. Chem. Soc. 2008, 19, 894. |
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Web
release date: April 18, 2008.
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HPLC
Microfractionation of Flavones and Antioxidant (Radical Scavenging) Activity
of Saccharum officinarum L.
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Fabiana C. Vila, Renata Colombo, Tatiana O. de Lira and Janete H. Yariwake |
| J.
Braz. Chem. Soc. 2008, 19, 903. |
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Web
release date: April 18, 2008.
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The
Use of Benzil to Obtain Functionalized N-Heterocycles
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Mara E. F. Braibante, Hugo T. S. Braibante, Marciana P. Uliana, Carla C.
Costa and Marcelo Spenazzatto |
| J.
Braz. Chem. Soc. 2008, 19, 909. |
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Web
release date: April 23, 2008.
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Effect
of Preparation Conditions on Morphology, Drug Content and Release Profiles
of Poly(hydroxybutyrate) Microparticles Containing Piroxicam
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G. C. Bazzo, E. Lemos-Senna, M. C. Gonçalves and A. T. N. Pires |
| J.
Braz. Chem. Soc. 2008, 19, 914. |
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Web
release date: April
23, 2008.
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Solid-Phase
Microextraction for Determination of 3-Chloro-4-(dichloromethyl)-
5-hydroxy-2[5H]-furanone in Water
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Andrea L. Rezemini, Jorge M. Vaz and Lilian R. F. Carvalho |
| J.
Braz. Chem. Soc. 2008, 19, 922. |
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Web
release date: April
25, 2008.
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A
Novel Approach to Cold Vapor Generation for the Determination of Mercury
in Biological Samples
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Eder José dos Santos, Amanda Beatriz Herrmann, Vera Lúcia
Azzolin Frescura, Ralph Edward Sturgeon and Adilson José Curtius |
| J.
Braz. Chem. Soc. 2008, 19, 929. |
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Web
release date: April
25, 2008.
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Mineral
Composition of Wheat Flour Consumed in Brazilian Cities
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Rennan G. O. Araujo,
Samuel M. Macedo, Maria das Graças A. Korn, Maria Fernanda Pimentel,
Roy E. Bruns
and Sergio L. C. Ferreira
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| J.
Braz. Chem. Soc. 2008, 19, 935. |
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Web
release date: April
25, 2008.
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Methylene
Blue Immobilized on Cellulose Acetate with Titanium Dioxide: an Application
as Sensor for Ascorbic Acid
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Andrea A. Hoffmann, Silvio L. P. Dias, Jordana R. Rodrigues, Flavio A. Pavan,
Edilson V. Benvenutti and Eder C. Lima |
| J.
Braz. Chem. Soc. 2008, 19, 943. |
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Web
release date: April 25, 2008.
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Chloroform
Formation by Chlorination of Aqueous Algae Suspensions: Online Monitoring
via Membrane Introduction Mass Spectrometry
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João T. Borges, Regina Sparrapan, José R. Guimarães,
Marcos N. Eberlin and Rodinei Augusti |
| J.
Braz. Chem. Soc. 2008, 19, 950. |
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Web
release date: May
5 , 2008.
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Stripping
Voltammetric Determination of Copper (II) on an Overoxidized Polypyrrole
Functionalized with Nitroso-R
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Alireza Mohadesi, Ashraf Salmanipour, Sayed Ziae Mohammadi, Ali Pourhatami
and Mohammad Ali Taher |
| J.
Braz. Chem. Soc. 2008, 19, 956. |
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Web
release date: May 9, 2008.
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Synthesis,
Characterization and Biological Activity of 2-Methyl-3-aminoquinazolin-4(3H)-ones
Schiff Bases
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S. K. Sahu, Md. Afzal Azam, M. Banerjee, S. Acharrya, C. C. Behera and S.
Si |
| J.
Braz. Chem. Soc. 2008, 19, 963. |
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release date: May
9, 2008.
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A
Validated Method to Quantify Folic Acid in Wheat Flour Samples using Liquid
Chromatography - Tandem Mass Spectrometry
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Helio A. Martins-Júnior, Alexandre Y. Wang, Janete Alabourda, Maria
A. F. Pires, Oscar B. Vega and Daniel T. Lebre |
| J.
Braz. Chem. Soc. 2008, 19, 971. |
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release date: May
29, 2008.
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Trace
Element Distributions in Biodegraded Crude Oils and Fractions from the
Potiguar Basin, Brazil
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Christiane Duyck, Norbert Miekeley, Teresa C. O. Fonseca, Peter Szatmari
and Eugênio Vaz dos Santos Neto |
| J.
Braz. Chem. Soc. 2008, 19, 978. |
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release date: May
29, 2008.
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Study
of the Degradation of the Herbicide Clomazone in Distilled and in Irrigated
Rice Field Waters using HPLC-DAD and GC-MS
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Renato Zanella, Ednei G. Primel, Fábio F. Gonçalves, Manoel
L. Martins, Martha B. Adaime,
Enio Marchesan and Sérgio L. O. Machado |
| J.
Braz. Chem. Soc. 2008, 19, 987. |
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Web
release date: May 30, 2008.
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Copper
Adsorption as a Function of Solution Parameters of Variable Charge Soils
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Ernesto R. Mouta, Marcio R. Soares and Jose C. Casagrande |
| J.
Braz. Chem. Soc. 2008, 19, 996. |
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release date: May 30, 2008.
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Electrochemical
Study of b-Cyclodextrin Binding with Ferrocene
Tethered onto a Gold Surface via PAMAM Dendrimers
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E. Bustos, J. Manríquez, E. Juaristi, Thomas W. Chapman and Luis
A. Godínez |
| J.
Braz. Chem. Soc. 2008, 19, 1010. |
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release date: May 30, 2008.
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Electrochemistry
of Deferiprone as an Orally Active Iron Chelator and HIV-1 Replication
Inhibitor and its Determination
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H. Yadegari, A. Jabbari, H. Heli, A. A. Moosavi-Movahedi and S. Majdi |
| J.
Braz. Chem. Soc. 2008, 19, 1017. |
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release date: June 5, 2008.
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Liquid
Phase Photooxidation of Toluene in the Presence of Transition Metal Oxide
Doped Titania
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S. Riyas., G. Krishnan. and P. N. Mohan Das |
| J.
Braz. Chem. Soc. 2008, 19, 1023. |
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release date: June 9, 2008.
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Theoretical
Study of a-CD Based [3]Pseudorotaxanes: the
Role Played by Threadlike Polymer on the Stability of Cyclodextrin Dimers
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Cleber P. A. Anconi, Clebio S. Nascimento Jr., Wagner B. De Almeida and
Hélio F. Dos Santos |
| J.
Braz. Chem. Soc. 2008, 19, 1033. |
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release date: June 13, 2008.
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Isolation
and Quantification of Dialkylmercury Species by Headspace Solid Phase
Microextraction and Gas Chromatography with Atomic Emission Detection
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Ana M. Oliveira, Gilmare A. Silva, Ronei J. Poppi and Fabio Augusto |
| J.
Braz. Chem. Soc. 2008, 19, 1041. |
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release date: June 13, 2008.
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Steroidal
Glycoalkaloids and Molluscicidal Activity of Solanum asperum Rich.
Fruits
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Tania M. S. Silva, Celso A. Camara, Kristerson R. L. Freire, Thiago G. da
Silva, Maria de F. Agra and Jnanabrata Bhattacharyya |
| J.
Braz. Chem. Soc. 2008, 19, 1048. |
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Web
release date: April 29, 2008.
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Ferric
Hydrogensulfate Catalyzed Synthesis of Aryl 14H-Dibenzo[a,j]xanthene Derivatives
under Thermal and Solvent-free Conditions
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Hamid Reza Shaterian and Majid Ghashang |
| J.
Braz. Chem. Soc. 2008, 19, 1053. |
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release date: June 5, 2008.
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