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Journal of the Brazilian Chemical Society
versão impressa ISSN 0103-5053

 

Sumário
J. Braz. Chem. Soc. v.16 n.3b São Paulo maio/jun. 2005

Editorial


  
 Communication
  
 ·  b-butyltellanyl carbonyl compounds: a useful source of masked metal homoenolates
Santos, Alcindo A. dos; Comasseto, João V.

  
 Articles
  
 ·  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
Keller, Nicolas; Vieira, Ricardo; Nhut, Jean-Mario; Pham-Huu, Cuong; Ledoux, Marc J.

  
 ·  Determination of trace lead in waters by flow injection hydride generation atomic absorption spectrometry
Carrijo, Jane F. Neves; Brasil, Luciano C.; Coelho, Nívia M. Melo

  
 ·  A new neolignan and antioxidant phenols from Nectandra grandiflora
Ribeiro, Alan B.; Bolzani, Vanderlan da S.; Yoshida, Massayoshi; Santos, Leonardo S.; Eberlin, Marcos N.; Silva, Dulce H. S.

  
 ·  Development of a DC-plasma torch constructed with graphite electrodes and an integrated nebulization system for decomposition of CCl4
Cubas, Anelise L.V.; Carasek, Eduardo; Debacher, Nito A.; Souza, Ivan G. de

  
 ·  Studies on the niobium pentachloride-mediated nucleophilic additions to an enantiopure cyclic N-acyliminium ion derived from (S)-malic acid
Andrade, Carlos Kleber Z.; Rocha, Rafael O.; Russowsky, Dennis; Godoy, Marla N.

  
 ·  Determination of metals in Brazilian coconut water using an inductively coupled plasma optical emission spectrometer
Sousa, Rafael A. de; Baccan, Nivaldo; Cadore, Solange

  
 ·  Electrochemical impedance and current fluctuations analysis during slow strain rate test of a UNS S30400 stainless steel in low pH media
Bastos, Ivan N.; Nogueira, Ricardo P.; Ponciano, José A. C.

  
 ·  Muscicapines, a new class of guaiane-type sesquiterpene alkaloids from Croton muscicapa
Araújo-Júnior, Vicente T. de; Silva, Marcelo S. da; da-Cunha, Emídio V. Leitão; Agra, Maria de Fátima; Athayde-Filho, Petrônio F. de; Vieira, Ivo J. Curcino; Braz-Filho, Raimundo; Barbosa-Filho, José M.

  
 ·  Influence of the pH and substrate immersion time on the adsorption of poly(o-ethoxyaniline) in self-assembled films
Venancio, Everaldo C.; Paterno, Leonardo G.; Consolin Filho, Nelson; Borato, Carlos E.; Firmino, Alessandra; Mattoso, Luiz H. C.

  
 ·  Characterization of natural Brazilian clays and their utilization as catalysts in the coiodination of alkenes with water and alcohols
Villegas, Raul A. S.; Espírito Santo Jr., José Luiz do; Mattos, Marcio C. S. de; Aguiar, Mônica R. M. P. de; Guarino, Alcides W. S.

  
 ·  Iodide-selective membrane electrode based on salophen complex of cobalt (III)
Zare, Hamid R.; Memarzadeh, Farkhondeh; Gorji, Alireza; Ardakani, Mohammad Mazloum

  
 ·  Three new triterpenes from the resinous bark of Protium kleinii and their antinociceptive activity
Lima, Fabiana V.; Malheiros, Angela; Otuki, Michel F.; Calixto, João B.; Yunes, Rosendo A.; Cechinel Filho, Valdir; Delle Monache, Franco

  
 ·  Theoretical nonlinear optics equivalence between mesoionic and polyenic bridges in push-pull compounds
Silva, Andréa M. S.; Rocha, Gerd Bruno da; Menezes, Paulo Henrique; Miller, Joseph; Simas, Alfredo M.

  
 ·  Selective catalytic reduction of NO to N2 with copper and cobalt exchanged ZSM-5 zeolites: the effect of calcium addition
Martins, Leandro; Peguin, Robson Pablo S.; Wallau, Martin; Urquieta-González, Ernesto Antonio

  
 ·  A simple low-cost simulation protocol for approximate localization of structural water molecules in DNA oligonucleotides
Neder, Amarílis de V. Finageiv; Oliveira Neto, Marçal de

  
 ·  Gas-phase selective conjugate addition of methanol to acetone for methyl vinyl ketone over SnO2 nanoparticle catalysts
Fajardo, Humberto V.; Probst, Luiz F. D.; Valentini, Antoninho; Carreño, Neftalí L. V.; Maciel, Adeilton P.; Leite, Edson R.; Longo, Elson

  
 ·  Biotransformation of digitoxigenin by Fusarium ciliatum
Pádua, Rodrigo M.; Oliveira, Alaíde B.; Souza Filho, José D.; Vieira, Géssy J.; Takahashi, Jacqueline A.; Braga, Fernão C.

  
 ·  Oxidative dimerization of Ru(III)-EDTA complex on the surface of functionalized silica gel
Codognoto, Lúcia; Zanichelli, Patrícia Graça; Sernaglia, Rosana Lázara

  
 Short Reports
  
 ·  Racemic synthesis of 1,2-secomicrominutinin
Silva, Rosangela da; Donate, Paulo Marcos; Silva, Gil Valdo José da; Pedersoli, Susimaire; Alemán, Carlos

  
 ·  Others flavonoids from Ouratea hexasperma (Ochnaceae)
Daniel, Juliana F. de S.; Carvalho, Mário Geraldo de; Cardoso, Renata da S.; Agra, Maria de F.; Eberlin, Marcos N.

  
 ·  Evaluation of a continuum source tungsten coil atomic absorption spectrometer: a study of Zn behavior
Nóbrega, Joaquim A.; Rust, Jennifer; Calloway, Jr., Clifton P.; Jones, Bradley T.

  
 ·  New diterpenoids from leaves of Guarea macrophylla (Meliaceae)
Lago, João Henrique G.; Roque, Nídia F.

  
 ·  Facile and mild deprotection of semicarbazones under solvent-free conditions with N,N,N',N'-tetrabromo-benzene-1,3-disulfonylamide
Ghorbani-Vaghei, Ramin; Shahbazee, Elham

  
 ·  Development and validation of a multi-residue analytical methodology to determine the presence of selected pesticides in water through liquid chromatography
Brondi, Silvia H. G.; Lanças, Fernando M.

  
 ·  Zizyphus mauritiana Lam. (Rhamnaceae) and the chemical composition of its floral fecal odor
Alves, Ruy J. V.; Pinto, Angelo C.; Costa, Alexandre V. M. da; Rezende, Claudia M.

  
 ·  Long-range correlations ( nj C,H n > 3 ) in the HMBC spectra of 3-(4-oxo-4H-chromen-3-YL)-acrylic acid ethyl esters
Araya-Maturana, Ramiro; Gavín-Sazatornil, José A.; Heredia-Moya, Jorge; Pessoa-Mahana, Hernán; Weiss-López, Boris

  
 ·  Chemical constituents of Cordia piauhiensis: Boraginaceae
Santos, Renata Paiva dos; Lemos, Telma L. G.; Pessoa, Otilia Deusdênia L.; Braz-Filho, Raimundo; Rodrigues-Filho, Edson; Viana, Francisco Arnaldo; Silveira, Edilberto R.

  
 ·  Novel synthetic methodology for metalloporphyrins in ionic liquid
Singh, Ram; Geetanjali

  
 ·  Inhibition of the symbiotic fungus of leaf-cutting ants by coumarins
Godoy, Marizete F. P.; Victor, Sandra R.; Bellini, Adriana M.; Guerreiro, Gisleine; Rocha, Waldireny C.; Bueno, Odair C.; Hebling, Maria J. A.; Bacci Jr, Maurício; Silva, M. Fátima G. F. da; Vieira, Paulo C.; Fernandes, João B.; Pagnocca, Fernando C.

  
 ·  Bi(OTf)3 or Bi(TFA)3 catalyzed efficient, regio- and chemoselectively synthesis of b-hydroxy thioethers from aryl disulfides in the presence of zinc powder
Khodaei, Mohammad Mehdi; Khosropour, Ahmad Reza; Ghozati, Kazem

  
 ·  Sesquiterpene lactones from Minasia alpestris
Crotti, Antônio Eduardo M.; Cunha, Wilson R.; Lopes, Norberto P.; Lopes, João Luis C.

  
 Supplementary Material
  
 ·  Bi(OTf)3 or Bi(TFA)3 catalyzed efficient, regio- and chemoselectively synthesis of b-hydroxy thioethers from aryl disulfides in the presence of zinc powder
Khodaei, Mohammad Mehdi; Khosropour, Ahmad Reza; Ghozati, Kazem

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