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Journal of the Brazilian Chemical Society
versión On-line ISSN 1678-4790

 

Tabla de contenido
J. Braz. Chem. Soc. v.18 n.2 São Paulo mar./abr. 2007

 Editorial
  
 ·  Opportunities for research in global changes in the field of chemistry
Artaxo, Paulo

  
 Communication
  
 ·  Mesophase formation investigation in pitches by NMR relaxometry
Lima, Antonio Luís dos Santos; Pinto, Angelo C.; Gil, Rosane A. S. San; Tavares, Maria Inês B.

  
 Article
  
 ·  Validation of multivariate calibration models in the determination of sugar cane quality parameters by near infrared spectroscopy
Valderrama, Patrícia; Braga, Jez W. B.; Poppi, Ronei J.

  
 ·  Spectrophotometric studies on the protonation and nickel complexation equilibria of 4-(2-pyridylazo) resorcinol using global analysis in aqueous solution
Ghasemi, Jahanbakhsh; Niazi, Ali; Maeder, Marcel

  
 ·  Spectroscopic study of Tb3+(b-diketonate)3: a-cyclodextrin inclusion compounds in aqueous solution
Ribeiro, Anderson O.; Serra, Osvaldo A.

  
 ·  Self assembled rotaxane and pseudo-rotaxanes based on b-cyclodextrin inclusion compounds with trans-1,4-bis[(4-pyridyl)ethenyl]benzene-pentacyanoferrate(II) complexes
Toma, Sergio H.; Toma, Henrique E.

  
 ·  Synthesis and antifungal activity of new bis-g-lactones analogous to avenaciolide
Magaton, Andréia da Silva; Rubinger, Mayura M. M.; Macedo Júnior, Fernando C. de; Zambolim, Laércio

  
 ·  p-nitrobenzoic acid promoted synthesis of 1,5-benzodiazepine derivatives
Varala, Ravi; Enugala, Ramu; Adapa, Srinivas R.

  
 ·  Benign approaches for the microwave-assisted synthesis of quinoxalines
Mohsenzadeh, Farshid; Aghapoor, Kioumars; Darabi, Hossein R.

  
 ·  Hydride generation-in situ trapping-flame atomic absorption spectrometry hybridization for indium and thallium determination
Matusiewicz, Henryk; Krawczyk, Magdalena

  
 ·  Synthesis of novel PETT analogues: 3,4-dimethoxy phenyl ethyl 1,3,5-triazinyl thiourea derivatives and their antibacterial and anti-HIV studies
Patel, Rakesh B.; Chikhalia, Kishor H.; Pannecouque, Christophe; Clercq, Erik de

  
 ·  Investigation of the solid state reaction of LaMnO3 with Feº and its effect on the catalytic reactions with H2O2
Moura, Flávia C. C.; Araujo, Maria H.; Ardisson, José D.; Macedo, Waldemar A. A.; Albuquerque, Adriana S.; Lago, Rochel M.

  
 ·  Photo- and electroluminescent behavior of Eu3+ ions in blends with poly(vinyl-carbazole)
Deichmann, V.A.F.; Novo, J.B.M.; Cirpan, A.; Karasz, F. E.; Akcelrud, L.

  
 ·  A simple colorimetric method for the determination of carbofuran and its application in environmental and biological samples
Tamrakar, Urmila; Pillai, Ajai K.; Gupta, Vinay K.

  
 ·  Experimental and theorical study of the air quality in a suburban industrial-residential area in Rio de Janeiro, Brazil
Rodrigues, Fernanda; Milas, Ivan; Martins, Eduardo M.; Arbilla, Graciela; Bauerfeldt, Glauco F.; Paula, Murilo de

  
 ·  Application of pyridine-2-carbaldehyde-2-(4-methyl-1,3-benzo thiazol-2-yl)hydrazone as a neutral ionophore in the construction of a novel Er(III) sensor
Ganjali, Mohammad Reza; Rezapour, Morteza; Rasoolipour, Solmaz; Norouzi, Parviz; Adib, Mehdi

  
 ·  Potentiometric study of cetylpyridinium chloride cooperative binding to anionic azo-dyes
Hosseinzadeh, Reza; Bordbar, Abdol-Khalegh; Matin, Amir Abbas; Maleki, Ramin

  
 ·  tri-n-butyltin hydride-mediated radical reaction of a 2-iodobenzamide: formation of an unexpected carbon-tin bond
Oliveira, Marcelo T.; Prado, Maria Auxiliadôra F.; Alves, Rosemeire B.; Cesar, Amary; Alves, Ricardo J.; Queiroga, Carla G.; Santos, Leonardo S.; Eberlin, Marcos N.

  
 ·  Substituent influence on the diastereoselectivity of the alkylation of cyclic chiral imines
Santos, Éverton M. dos; Bogdan, Marizane; Victor, Maurício M.; Tenius, Beatriz S.M.; Oliveira, Eduardo R. de

  
 ·  A physico-chemical study of the cationic surfactants adsorption on montmorillonite
Praus, Petr; Turicová, Martina

  
 ·  Chemical modifications of nimesulide
Pericherla, Sandhya; Mareddy, Jyoti; Rani D. P., Geetha; Gollapudi, Padmavathi V.; Pal, Sarbani

  
 ·  Natural and semi-synthetic clerodanes of Croton cajucara and their cytotoxic effects against ehrlich carcinoma and human K562 leukemia cells
Maciel, Maria Aparecida M.; Martins, Jenilce R.; Pinto, Angelo C.; Kaiser, Carlos R.; Esteves-Souza, Andressa; Echevarria, Aurea

  
 ·  A rapid method to determine antibiotic residues in milk using liquid chromatography coupled to electrospray tandem mass spectrometry
Martins-Júnior, Helio A.; Kussumi, Tereza A.; Wang, Alexandre Y.; Lebre, Daniel T.

  
 ·  Electrochemical fabrication of sandwich nanostructures based on anodic alumina
Li, Zhao Jian; Huang, Ke Long

  
 ·  Ultrasound-assisted treatment of coconut water samples for potentiometric stripping determination of zinc
Munoz, Rodrigo A. A.; Kolbe, Matias; Siloto, Rita C.; Oliveira, Pedro V.; Angnes, Lucio

  
 ·  The influence of BHA, BHT and TBHQ on the oxidation stability of soybean oil ethyl esters (biodiesel)
Domingos, Anderson K.; Saad, Emir B.; Vechiatto, Wellington W. D.; Wilhelm, Helena M.; Ramos, Luiz P.

  
 ·  Uncertainties related to linear calibration curves: a case study for flame atomic absorption spectrometry
Chui, Queenie S. H.

  
 Short Report
  
 ·  Quaternization reaction of 2-vinylpyridine and 4-vinylpyridine network copolymers for 4-nitrophenol adsorption
Rodrigues, Adriana S. S.; Aguiar, Alcino P. de; Aguiar, Mônica R. M. P. de; Santa Maria, Luiz Claudio de

  
 ·  Xeractinol: a new flavanonol C-glucoside from Paepalanthus argenteus var. argenteus (Bongard) Hensold (Eriocaulaceae)
Dokkedal, Anne Lígia; Lavarda, Francisco; Santos, Lourdes Campaner dos; Vilegas, Wagner

  
 ·  A SARS-coronovirus 3CL protease inhibitor isolated from the marine sponge Axinella cf. corrugata: structure elucidation and synthesis
Lira, Simone P. de; Seleghim, Mirna H. R.; Williams, David E.; Marion, Frederic; Hamill, Pamela; Jean, François; Andersen, Raymond J.; Hajdu, Eduardo; Berlinck, Roberto G. S.

  
 ·  Abietane diterpenes from Sagittaria montevidensis ssp montevidensis Charm. & Schltdl
Radke, Vanessa S. C. de O.; Amaral, Maria do Carmo E.; Schuquel, Ivânia T. A.; Silva, Cleuza C. da; Oliveira, Cecília M. A. de; Tanaka, Clara M. A.

  
 ·  A concise synthesis of the 1,6-disubstituted eudesmane sesquiterpene carbon skeleton
Vieira, Ygor Willian; Nakamura, Joanita; Finelli, Fernanda Gadini; Brocksom, Ursula; Brocksom, Timothy John