Recent Papers - Machine Learning Special Issue
Reviews/Accounts - last 5 years
vol. 33, No. 3, 2022, p. 205-302
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A efficient tandem synthesis of furanaphthoquinones via enamines provides compounds with activity against the epimastigote form of Trypanosoma cruzi, the parasite that causes Chagas disease. Details are presented in the Article Furanaphthoquinones via Enamines and Evaluation of Their Antiparasitic Effects against Trypanosoma cruzi by Mariana F. C. Cardoso, Luana S. M. Forezi, Acácio S. de Souza, Ana F. M. Faria, Raissa M. S. Galvão, Murilo L. Bello, Fernando C. da Silva, Robson X. Faria and Vitor F. Ferreira on page 238.
Tandem Synthesis of Furanaphthoquinones via Enamines and Evaluation of Their Antiparasitic Effects against Trypanosoma cruzi
Mariana F. C. Cardoso 
; Luana S. M. Forezi ; Acácio S. de Souza ; Ana F. M. Faria; Raissa M. S. Galvão; Murilo L. Bello; Fernando C. da Silva ; Robson X. Faria ; Vitor F. Ferreira
A efficient tandem synthesis of furanaphthoquinones via enamines provides compounds with activity against the epimastigote form of Trypanosoma cruzi, the parasite that causes Chagas disease. Details are presented in the Article Furanaphthoquinones via Enamines and Evaluation of Their Antiparasitic Effects against Trypanosoma cruzi by Mariana F. C. Cardoso, Luana S. M. Forezi, Acácio S. de Souza, Ana F. M. Faria, Raissa M. S. Galvão, Murilo L. Bello, Fernando C. da Silva, Robson X. Faria and Vitor F. Ferreira on page 238.
https://dx.doi.org/10.21577/0103-5053.20210142
Articles J. Braz. Chem. Soc. 2022, 33(3), 205-216
Graphite-Polyurethane Composite Electrode Modified with Molecularly Imprinted Polymer for Determination of Diclofenac
Abigail V. Pereira; Priscila Cervini ; Victor A. G. Rivera; Éder T. G. Cavalheiro
Schematic figure of molecularly imprinted polymer (MIP) synthesis using diclofenac (DCF) as template and the modification of a graphite-polyurethane composite electrode (GPUE) with MIP-DCF for the voltammetric determination of diclofenac. Voltammetric response of GPUE-2.5-MIP-DCF in comparison to glassy carbon (GC) and unmodified GPUE.
https://dx.doi.org/10.21577/0103-5053.20210138
J. Braz. Chem. Soc. 2022, 33(3), 217-226
Extracts of the Native Brazilian Tree Garcinia gardneriana Inhibit Urediniospore Germination of Coffee Leaf Rust Fungus
Ueveton P. da Silva; Bruno W. Ferreira; Bianca L. de Sousa ; Gabriela M. Furlani; Robert W. Barreto; Ana Paula Agrizzi ; João Paulo V. Leite ; Marcelo H. dos Santos ; Eduardo V. V. Varejão
Extract from the plant Garcinia gardneriana inhibited germination of Hemileia vastatrix at a concentration with no phytotoxic activity.
https://dx.doi.org/10.21577/0103-5053.20210139
J. Braz. Chem. Soc. 2022, 33(3), 227-237
Synthesis and Biological Evaluation of Novel Betulin Derivatives with Aromatic Hydrazone Side Chain as Potential Anticancer Agents
Jiafeng Wang; Jiale Wu; Yinglong Han; Jie Zhang; Yu Lin; Haijun Wang; Jing Wang; Ming Bu
Fifteen betulin derivatives 7a-7o were synthesized. Compound 7l displayed the most potent antitumor activity, which also could induce apoptosis of MCF-7 cells.
https://dx.doi.org/10.21577/0103-5053.20210140
J. Braz. Chem. Soc. 2022, 33(3), 238-250
Tandem Synthesis of Furanaphthoquinones via Enamines and Evaluation of Their Antiparasitic Effects against Trypanosoma cruzi
Mariana F. C. Cardoso ; Luana S. M. Forezi ; Acácio S. de Souza ; Ana F. M. Faria; Raissa M. S. Galvão; Murilo L. Bello; Fernando C. da Silva ; Robson X. Faria ; Vitor F. Ferreira
This strategy provides an efficient and general method for synthesizing furanaphthoquinones with activity against the epimastigote form of Trypanosoma cruzi, the parasite that causes Chagas disease.
https://dx.doi.org/10.21577/0103-5053.20210142
J. Braz. Chem. Soc. 2022, 33(3), 251-259
Rapid Recognizing the Producing Area of a Tobacco Leaf Using Near-Infrared Technology and a Multi-Layer Extreme Learning Machine Algorithm
Ruidong Li; Wenyong Huang; Guanlan Shang; Xiaobing Zhang; Xin Wang; Jianguo Liu; Yong Wang; Junfeng Qiao; Xing Fan; Kai Wu; Wenhua Zi
A near-infrared (NIR) spectroscopy device is a useful tool for rapid recognizing the producing areas of Yunnan tobacco leaves.
https://dx.doi.org/10.21577/0103-5053.20210143
J. Braz. Chem. Soc. 2022, 33(3), 260-267
Response Factor in GC-FID Methyl Ester Analysis in Several Biodiesels: A Comparative Study of the
EN 14103:2011 and ABNT 15764:2015 Methods versus a Proposed GC-FID Procedure for Individual Ester Determination
Willian L. G. da Silva; Arnaldo G. Oliveira Jr.; Matthieu Tubino
A gas chromatography method with a flame ionization detector enabled by relative response factor was developed to determine the individual and the total content of esters in biodiesel.
https://dx.doi.org/10.21577/0103-5053.20210144
J. Braz. Chem. Soc. 2022, 33(3), 268-273
Structural Characteristics of Lignite Char from Different Pyrolysis Reactors and the Influence on Their Gasification Reactivity
Ying Zhang ; Haitang Wang; Xiaoqin Wang
The structural features of lignite char obtained from different reactors were characterized and the influence on their gasification reactivity under different atmospheres was investigated.
https://dx.doi.org/10.21577/0103-5053.20210145
J. Braz. Chem. Soc. 2022, 33(3), 274-280
How Much do the Environmental Conditions Interfere with the Essential Oils of Eugenia spp. L. (Myrtaceae)?
Raisa M. Silveira ; Ana F. U. Carvalho; Mariana O. Bünger; Manuella M. Gomes; Itayguara R. da Costa
Chemometric analyzes were performed to determine the influence of environmental conditions on essential oils from Eugenia species. Interspecific phytochemical patterns and statistical regression models were estimated.
https://dx.doi.org/10.21577/0103-5053.20210146
J. Braz. Chem. Soc. 2022, 33(3), 281-290
Use of Direct Aqueous Injection and Solid Phase Extraction Coupled with Hydrophilic Interaction Chromatography to Analyze Haloacetic Acids in Drinking Water Samples
Andrea C. Begambre Berrio ; Sergiane C. Barbosa ; Jean L. O. Arias ; Lucas C. Marcolin; Ednei G. Primel
The present study reports the use of a high-performance liquid chromatography (HPLC) Luna column in the hydrophilic interaction chromatography (HILIC) mode to determine six brominated and chlorinated haloacetic acids (HAAs) in drinking water samples by sample preparation techniques, such as direct aqueous injection (DAI) and solid phase extraction (SPE), based on the principles of green analytical chemistry.
https://dx.doi.org/10.21577/0103-5053.20210147
J. Braz. Chem. Soc. 2022, 33(3), 291-302
A New Synthetic Route and Comprehensive Topological Study of a Benzimidazole Derivative
Vitor S. Duarte ; Raquel F. Naves; Adailton J. Bortoluzzi; Eduardo C. M. Faria; Aline M. da Silva; Guilherme R. Oliveira; Christian G. Alonso ; Hamilton B. Napolitano
Synthesis study involving graphite oxide and supramolecular arrangement of a new benzimidazole derivative.
https://dx.doi.org/10.21577/0103-5053.20210149
Online version ISSN 1678-4790 Printed version ISSN 0103-5053
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