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16:09, ter dez 12








Autores: A partir do fascículo 39/9 a revista Química Nova adotou a licença CC-BY. Mais informações a respeito dessa licença podem ser obtidas aqui.

Artigos no Prelo


Artigos

NEW DEGRADED QUINONE DITERPENOID FROM THE STEMS OF Byrsonima coccolobifolia Kunth. (Malpighiaceae)

Lorena R. F. de Sousa; Marcos H. F. Santos; Vanessa G. P. Severino; Richele P. Severino; Paulo C. Vieira

New degraded diterpenoid, byrsonimaquinone, isolated from the stems of Byrsonima coccolobifolia.

http://dx.doi.org/10.21577/0100-4042.20170173

Publicado online: dezembro 12, 2017
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KINETIC BEHAVIOR OF SOME AZO DYES DECOLORIZATION BY VARIATION OF ZINC OXIDE AND TITANIUM DIOXIDE CONCENTRATIONS

Wallace J. C. da Silva; Natalia M. Monezi; Vanildo S. Leão Neto; Keiko Takashima

Photocatalytic behavior of ZnO (○) and TiO2 (□) in the decolorization rate constant, kobs, of methyl orange (); acid orange 7 (); direct orange34 (); and direct yellow 86 (▬) at 30 ºC.

http://dx.doi.org/10.21577/0100-4042.20170172

Publicado online: dezembro 12, 2017
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EXPERIMENTAL AND THEORETICAL ANALYSIS OF AN OXAZINOQUINOXALINE DERIVATIVE FOR CORROSION INHIBITION OF AISI 1018 STEEL

Joherbson Deivid dos S. Pereira; Jannyely M. Neri; Denise P. Emerenciano; Gutto Raffyson S. de Freitas; Maria Beatriz M. Cansanção Felipe; Miguel Ângelo F. de Souza; Fabrício G. Menezes; Maria Aparecida M. Maciel

An oxazinoquinoxaline as corrosion inhibitor for mild steel in saline medium.

http://dx.doi.org/10.21577/0100-4042.20170171

Publicado online: dezembro 12, 2017
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CHEMICAL CONSTITUENTS DERIVED FROM THE CANARIES MARINE SPONGE Myxilla sp.

Pere Ferriol Bunyola; Francisco J. Toledo Marante; Juan Francisco Leon Oyola; Ignacio Brouard Martin; Rayco Guedes Alonso; José J. Santana Rodríguez

Marine sponges synthesize several metabolites with potential biological activities. The large pharmaceutical companies have initiated programs for the application of these metabolites in medicine.

http://dx.doi.org/10.21577/0100-4042.20170170

Publicado online: dezembro 11, 2017
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EMPREGO DE QUÍMICA COMPUTACIONAL NA VERIFICAÇÃO E VALIDAÇÃO DA PRESSÃO DE DETONAÇÃO DE EXPLOSIVO PLÁSTICO-PBX

Fausto B. Mendonça; Rene F. B. Gonçalves; Girum S. Urgessa; Koshun Iha; Marcela Domingues; José A. F. F. Rocco

Molecular representation of solid HMX unit cell, with molecules distributed inside the boundaries, prior to the material ignition.

http://dx.doi.org/10.21577/0100-4042.20170169

Publicado online: dezembro 11, 2017
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FOURIER TRANSFORM INFRARED SPECTROSCOPY, THERMOGRAVIMETRIC ANALYSIS, SCANNING ELECTRON MICROSCOPY AS SUPPORTING TOOLS IN QUALITY CONTROL OF ANTIPARASITICS

Michelli dos Santos Silva; Karla Loriatto Gonring; Ricky Cássio Santos da Silva; Matheus Cecílio Fonseca; Marcella Matos Cordeiro Borges; Otalibio Castiglioni Nunes; Moacir Rossi Forim; Keyller Bastos Borges; Warley de Souza Borges

A new RP-HPLC method was developed and validated for the simultaneous determination of antiparasitics. In addition, FTIR (experimental and theoretical), TGA, and SEM were useful to identify the raw materials.

http://dx.doi.org/10.21577/0100-4042.20170168

Publicado online: dezembro 11, 2017
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OPTOELECTRONIC PROPERTIES OF TRIPHENYLAMINE BASED DYES FOR SOLAR CELL APPLICATIONS. A DFT STUDY

Zakaria Mohyi Eddine Fahim; Si Mohamed Bouzzine; Mouay Mustapha Hamidi; Mohammed Bouachrine; Mohamed Hamidi; Guillermo Salgado-Morán; Luis H. Mendoza-Huizar; Giaan A. Alvarez-Romero

General molecular structure of the triphenylamine based dyes analyzed in the present work.

http://dx.doi.org/10.21577/0100-4042.20170167

Publicado online: dezembro 11, 2017
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PROCESSO DE ELETROCOAGULAÇÃO-FLOTAÇÃO: INVESTIGAÇÃO DOS PARÂMETROS OPERACIONAIS PARA O TRATAMENTO DE ÁGUAS RESIDUAIS DA INDÚSTRIA DE PESCADOS

Jair J. João; Tuane Emerick; Urias de S. Filho; Rafael K. Nishihora

Schematic representation of the electrochemical system forming a parallel circuit used in wastewater treatment.

http://dx.doi.org/10.21577/0100-4042.20170166

Publicado online: dezembro 4, 2017
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INFLUENCE OF CARDANOL ENCAPSULATED ON THE PROPERTIES OF POLY(LACTIC ACID) MICROPARTICLES

Jaciene J. F. Cardoso; Eduardo Ricci-Júnior; Denise Gentili; Luciana S. Spinelli; Elizabete F. Lucas

Microparticles of PLA100 containing 0.75 wt/v% of PVA with cardanol encapsulated.

http://dx.doi.org/10.21577/0100-4042.20170165

Publicado online: dezembro 4, 2017
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ADSORÇÃO DE CONTAMINANTES DO BIODIESEL POR FIBRAS DE BAGAÇO MODIFICADAS NA SUPERFÍCIE

Renata de Souza Oliveira; Mariana Fornazier Borges; Andressa Tironi Vieira; Mariana Alves Henrique; Elaine A. Mundim Ribeiro; Franciel Aureliano Bezerra; Flaysner Magayver Portela; Nilson Roberto Pereira; Rosana Maria Nascimento de Assunção; Reinaldo Ruggiero

Sugarcane bagasse fibers modified superficially through the carboxymethylation process - in natura and MEV image - that were used to adsorb contaminants in biodiesel from soybean oil.

http://dx.doi.org/10.21577/0100-4042.20170164

Publicado online: dezembro 4, 2017
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TRATAMENTO ELETROQUÍMICO DE EFLUENTE DA PRODUÇÃO DE BIODIESEL USANDO UM ELETRODO DO TIPO ADE: Ti/IrO2-Nb2O5

Carlos H. M. Fernandes; Marcelo M. Yamasaki; Fernando L. Silva; Vanessa M. Vasconcelos; Robson S. Rocha; Marcos R. V. Lanza; Marilza Castilho; Evandro L. Dall'Óglio; Ailton J. Terezo

Reduction of the total organic carbon (%TOC) of the Biodiesel wastewater by the electrochemical treatments.

http://dx.doi.org/10.21577/0100-4042.20170163

Publicado online: dezembro 4, 2017
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PROCESSING OF SPENT ZINC-MnO2 DRY CELLS IN VARIOUS ACIDIC MEDIA

Vinício Francisco Ibiapina; Ulysses dos Santos Florentino; Júlio Carlos Afonso; Valdir Gante; Cláudio Augusto Vianna; José Luiz Mantovano

Efficient leaching of spent zinc-MnO2 dry cells under mild experimental conditions using weak acids. Zn(II) was best extracted by D2EHPA at pH 2. Sodium salts of the anions of the leachants were recovered.

http://dx.doi.org/10.21577/0100-4042.20170162

Publicado online: dezembro 4, 2017
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AVALIAÇÃO DE ASFALTENOS PRECIPITADOS EM DIFERENTES CONDIÇÕES DE COMPOSIÇÃO, TEMPERATURA E PRESSÃO

Lyzette Gonçalves Moraes de Moura; Paulo de Tarso Vieira e Rosa

Asphaltenes are the heaviest and most polar fraction of crude oils and have the property of self-associate, precipitating in the reservoir or during the production and processing, which can cause serious damage and economic lost to the oil industry.

http://dx.doi.org/10.21577/0100-4042.20170161

Publicado online: dezembro 4, 2017
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ORGANOFILIZAÇÃO E SILANIZAÇÃO DE ARGILA BENTONITA

Amanda F. Baruel; Rita C. L. Dutra; Maurício R. Baldan; Cristina M. A. Lopes; Silvana N. Cassu

A bentonite clay was modifed with methoxymethyltriphenylphosphonium chloride (CTFF), this organoclay was silanized with (3-glycidyloxypropyl)trimethoxysilane (GPTMS).

http://dx.doi.org/10.21577/0100-4042.20170160

Publicado online: dezembro 4, 2017
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BIOCONVERSION OF CELLULOSE INTO HYDROGEN, BIOGAS AND ORGANIC ACIDS USING MICROBIAL CONSORTIUM FROM A PULP AND PAPER MILL WASTEWATER TREATMENT PLANT

Camila Abreu B. Silva Rabelo; Laís Américo Soares; Isabel Kimiko Sakamoto; Maria Bernadete Amâncio Varesche

The hydrolysis and fermentation of cellulose into hydrogen, biogas and organic acids was performed successfully by biological sludge without pre-workout and without addition of cellulase.

http://dx.doi.org/10.21577/0100-4042.20170157

Publicado online: novembro 28, 2017
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THE USE OF POLYSACCHARIDES EXTRACTED FROM SEED OF Persea americana var. Hass ON THE SYNTHESIS OF ACRYLIC HYDROGELS

Vicente Arturo Lara-Valencia; Haydeé Dávila-Soto; Francisco Javier Moscoso-Sanchez; Edgar Benjamin Figueroa-Ochoa; Francisco Carvajal-Ramos; Victor Vladimir Amilcar Fernández-Escamilla; Alejandro González-Álvarez; J. Félix Armando Soltero-Martínez; Emma Rebeca Macías-Balleza; Salvador García-Enríquez

The kinetic swelling and the compression modulus of acrylic hydrogels are affected by the presence of polysaccharides extracted from seed of Persea americana var. Hass and for the type of initiation on the polymeric network.

http://dx.doi.org/10.21577/0100-4042.20170156

Publicado online: novembro 28, 2017
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DFT STUDY ON THE MECHANISTIC, ENERGETIC AND STRUCTURAL ASPECTS OF ADSORPTION OF TIRAPAZAMINE ONTO PRISTINE AND FUNCTIONALIZED CARBON NANOTUBES

Sadaf Avarand; Ali Morsali; Mohammad M. Heravi; S. Ali Beyramabadi

The activation parameters show that for the covalent functionalization, the COCl functionalized single wall carbon nanotube (NTCOCl) is kinetically favored with respect to the NTCOOH.

http://dx.doi.org/10.21577/0100-4042.20170155

Publicado online: novembro 13, 2017
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DEVELOPMENT AND OPTIMIZATION OF A MICROWAVE-ASSISTED EXTRACTION OF PLUMIERIDE FROM Allamanda cathartica L. FLOWERS

Tiago J. Bonomini; Jaqueline A. Góes Marina da S. Machado; Ruth M. L. da Silva; Angela Malheiros

Plumieride was isolated from A. cathartica flowers with higher yields with MAE. A simple and accurate HPLC method has been validated to quantify plumieride. Yields of plumieride obtained by MAE and conventional extraction were compared.

http://dx.doi.org/10.21577/0100-4042.20170153

Publicado online: novembro 13, 2017
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MORE ACTIVE AND SULFUR RESISTANT BIMETALLIC Pd-NI CATALYSTS

Carolina Betti; Nicolás Carrara; Juan Badano; Cecilia Lederhos; Carlos Vera; Mónica Quiroga

In the absence of sulfur, PdNiN and NiNPd catalysts had the highest initial rate of hydrogenation (r°sf). In the presence of poison, all the catalysts had similar initial rate of hydrogenation (r°sp). NiClPd presented the lowest fraction of poisoned sites (α), resulting the most sulfur resistant.

http://dx.doi.org/10.21577/0100-4042.20170152

Publicado online: novembro 13, 2017
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ESTERIFICAÇÃO E TRANSESTERIFICAÇÃO HOMOGÊNEA DE ÓLEOS VEGETAIS CONTENDO ALTO TEOR DE ÁCIDOS GRAXOS LIVRES

José Sebastião C. Vieira; Taís L. Sousa; Luzilene S. Rosas; Ana L. Lima; Célia M. Ronconi; Cláudio J. A. Mota

Schematic diagram showing the homogeneous esterification and transesterification steps of Brazilian nut oil (Bertholletia excelsa).

http://dx.doi.org/10.21577/0100-4042.20170148

Publicado online: novembro 8, 2017
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FATTY ACID ETHYL ESTERS FROM MICROALGAE OF Scenedesmus ecornis BY ENZYMATIC AND ACID CATALYSIS

Gabryelle F. de Almeida; Pedro H. F. de Araújo; Alexandro C. Florentino; Roberto M. Bezerra; José C. T. Carvalho; Silvia M. M. Faustino; Irlon M. Ferreira

We identified palmitic, linoleic, oleic and stearic acids as the main constituents in the lipid extract from microalgae biomass present in the Amazonian ecosystem (Macapá-AP).

http://dx.doi.org/10.21577/0100-4042.20170147

Publicado online: novembro 8, 2017
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FERMENTAÇÃO ALCOÓLICA DE HIDROLISADO HEMICELULÓSICO DE TORTA DE GIRASSOL POR Galactomyces geotrichum UFVJM-R10 E Candida akabanensis UFVJM-R131

Jéssica Pereira de Matos; Kelton Rodrigues de Souza; Alexandre Soares dos Santos; Lílian de Araújo Pantoja

The process represented above show the chemical hydrolysis of the hemicellulose fraction from sunflower seed cake and its conversion into ethanol through the use of unconventional xylose fermenting yeasts.

http://dx.doi.org/10.21577/0100-4042.20170146

Publicado online: novembro 8, 2017
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ALTERNATIVE SOURCE APPORTIONMENT IN THE SURROUNDING REGION OF A LARGE STEEL INDUSTRY APPLYING Tillandsia usneoides AS BIOMONITOR

Laura Benevides dos Santos; Ana Cristina Almeida; Jose Marcus Godoy

Steel work biomonitoring based on the Tillandsia usneoides: collection at PUC-Rio, relocation to the sampling stations and clustering based on the elemental analysis.

http://dx.doi.org/10.21577/0100-4042.20170144

Publicado online: novembro 8, 2017
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ANÁLISE POR INJEÇÃO SEQUENCIAL COM DETECÇÃO POR VOLTAMETRIA DE ONDA QUADRADA PARA DETERMINAÇÃO DE As(III) EM AMOSTRAS DE ÁGUAS USANDO ELETRODO DE OURO

Fernando Henrique do Nascimento; Jorge Cesar Masini

A sequential injection method was developed for determination of As(III) in waters using gold electrodes. The sampling throughput was 20 analyses h-1 with LOQ of 5.2 µg L-1, a value 2-fold lower than that allowed by World Health Organization (10 µg L-1).

http://dx.doi.org/10.21577/0100-4042.20170143

Publicado online: novembro 8, 2017
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CALCULATION OF CATALYTIC REACTIVITY FOR PREPARING DICHLORODIMETHYLSILANE UTILIZING PRE- AND POST-MODIFIED 24T AlCl3/ZSM-5

Wenyuan Xu; Mei Yang; Xiaoyan Li; Shaoming Yang; Xi Chen; Zhili Fang; Xiaoxin Wu; Sanguo Hong

The reaction mechanism of disproportionating methyltrichlorosilane and trimethylchlorosilane are catalyzed by 24T cluster AlCl3/X-ZSM-5(X stands for pre- and post-modified by (AlCl2)+, (BCl2)+).

http://dx.doi.org/10.21577/0100-4042.20170142

Publicado online: novembro 8, 2017
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OXIDATION OF CYCLOHEXANOL ON PHOSPHOTUNGSTIC ACID ANION INTERCALATED LAYERED DOUBLE HYDROXIDES WITH AQUEOUS H2O2 AS OXIDANT

Xueli Bai; Zhaoyang Bai; Dandan Xue; Huiyan Sun; Xin Huang; Yongxiang Zhao; Yue Zhang

The POM anion was successfully inserted by intercalated and nickel supported LDH laminate by Mg2AlNi and Mg3Al layered double hydroxide. The synergistic effect exists between the POMs and the nickel supported LDH laminate. Which lead to have a good catalytic performance in the oxidation of cyclohexanol.

http://dx.doi.org/10.21577/0100-4042.20170136

Publicado online: outubro 27, 2017
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Revisão

A VERSATILIDADE DO ELETRODO DE GOTA PENDENTE DE MERCÚRIO EM QUÍMICA ANALÍTICA - UMA REVISÃO SOBRE RECENTES APLICAÇÕES

Chalder Nogueira Nunes; Vanessa Egéa dos Anjos; Sueli Pércio Quináia

Good sensitivity, versatility and low cost make the use of Hanging Mercury Drop Electrode still significant in many countries. Organic and inorganic analytes remain to be studied in different matrices.

http://dx.doi.org/10.21577/0100-4042.20170154

Publicado online: novembro 13, 2017
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QUIMIOINFORMÁTICA: UMA INTRODUÇÃO

Vinicius M. Alves; Rodolpho C. Braga; Eugene N. Muratov; Carolina Horta Andrade

Application of cheminformatics to evaluation, selection, and design of new chemicals with optimized properties.

http://dx.doi.org/10.21577/0100-4042.20170145

Publicado online: novembro 8, 2017
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METABOLÔMICA: DEFINIÇÕES, ESTADO-DA-ARTE E APLICAÇÕES REPRESENTATIVAS

Gisele A. B. Canuto; José Luiz da Costa; Pedro L. R. da Cruz; Ana Rosa L. de Souza; Andréa T. Faccio; Aline Klassen; Karina T. Rodrigues; Marina F. M. Tavares

A metabolomic study follows a workflow that involves steps from the experimental design to the biological interpretation of the system under evaluation.

http://dx.doi.org/10.21577/0100-4042.20170134

Publicado online: outubro 16, 2017
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CÉLULAS SOLARES DE PEROVSKITAS: UMA NOVA TECNOLOGIA EMERGENTE

Ellen Raphael; Mariana Nascimento Silva; Rodrigo Szostak; Marco Antônio Schiavon; Ana Flávia Nogueira

Perovskite solar cells are being one of the most important emerging photovoltaics in this century, with a significant increase in energy conversion efficiency, due to their fantastic properties, diversification of the processing methods and different materials.

http://dx.doi.org/10.21577/0100-4042.20170127

Publicado online: outubro 2, 2017
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Nota Técnica

USO DE PALHA DE AÇO COMERCIAL PARA O TRATAMENTO DE EFLUENTES CONTENDO CROMO HEXAVALENTE PROVENIENTES DE PROCESSOS DE ELETROCOLORAÇÃO DE AÇOS INOXIDÁVEIS

Kallyni Irikura; Marcelo Braga Bueno Guerra; Nerilso Bocchi; Romeu Cardozo Rocha-Filho; Elaine Kikuti; Sonia Regina Biaggio

Treatment of a Cr(VI) residual solution with a given amount of commercial steel wool pads followed by chemical precipitation with NaOH up to pH 10-11 and separation by filtration under reduced pressure. The produced solid residue is predominantly Cr(OH)3 and Fe(OH)3.

http://dx.doi.org/10.21577/0100-4042.20170150

Publicado online: novembro 8, 2017
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OTIMIZAÇÃO DA EXTRAÇÃO SÓLIDO-LÍQUIDO COM PARTIÇÃO EM BAIXA TEMPERATURA PARA DETERMINAÇÃO DE CARBOFURANO EM Cucurbita pepo L ("ABOBRINHA") POR CROMATOGRAFIA LÍQUIDA DE ALTA EFICIÊNCIA

Rogério P. Rodrigues; Waldiclécio R. Farias; Simone M. Goulart; Adilson C. Goulart; João Paulo V. Santos; Maria Eliana L. R. de Queiroz

The SLE/LTP-HPLC/UV method was optimized for the determination of carbofuran residues in zucchini. After partitioning at low temperature, the extracts are directly analyzed by chromatography.

http://dx.doi.org/10.21577/0100-4042.20170141

Publicado online: outubro 27, 2017
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PREPARAÇÃO DE α-ACETILOXI-N-CICLOEXILAMIDAS ATRAVÉS DA REAÇÃO DE PASSERINI UTILIZANDO DIMETILCARBONATO COMO SOLVENTE AMBIENTALMENTE AMIGÁVEL

Bárbara R. Oliveira; Carla C. Silva; Juliana C. P. Calado; Wagner L. Batista; Fernanda A. Siqueira; Luiz S. Longo Jr.

A series of α-acetyloxy-N-cyclohexylamides was efficiently obtained via Passerini reaction of cyclohexyl isocyanide, acetic acid, and different aromatic and aliphatic aldehydes using refluxing dimethylcarbonate (DMC) as unconventional solvent.

http://dx.doi.org/10.21577/0100-4042.20170140

Publicado online: outubro 27, 2017
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ZEÓLITA 4A PARA PURIFICAÇÃO DO GÁS DE ATERRO SANITÁRIO

José D. V. de Souza Filho; Ari C. A. de Lima; Ronaldo Stefanutti; Wildson M. B. da Silva; Moisés Bastos-Neto; Enrique Vilarrasa-Garcia; Adonay R. Loiola; Francisco S. B. Mota

CO2 adsorption present in landfill biogas using zeolites 4A. The use of zeolites is an alternative to landfill biogas purification targeting the use of methane.

http://dx.doi.org/10.21577/0100-4042.20170133

Publicado online: outubro 16, 2017
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ASSEMBLY OF LOW-COST LAB-MADE PHOTOREACTOR FOR PREPARATION OF NANOMATERIALS

Vera Katic; Pãmyla L. dos Santos; Joyce G. Gabriel; Acacia Adriana Salomão; Juliano Alves Bonacin

http://dx.doi.org/10.21577/0100-4042.20170123

Publicado online: setembro 19, 2017
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Educação

POR QUE ESCOLHI FAZER UM CURSO DE LICENCIATURA? PERFIL E MOTIVAÇÃO DOS INGRESSANTES DA UNESP

Amadeu Moura Bego; Tarso Bortolucci Ferrari

The findings show that the majority of undergraduate students in chemistry at the São Paulo State University take the course for reasons that are essentially motivated by intrinsic factors.

http://dx.doi.org/10.21577/0100-4042.20170159

Publicado online: novembro 28, 2017
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DETERMINAÇÃO DE SÓDIO EM CACHAÇA POR ESPECTROMETRIA DE EMISSÃO ATÔMICA: EFEITO DAS PROPRIEDADES FÍSICO-QUIMICAS DA SOLUÇÃO

Junia Graziele Pereira; Luiz Antonio Ramos; Éder Tadeu Gomes Cavalheiro; Joaquim de Araújo Nóbrega

Analytical calibration curves for sodium ions in flame atomic emission spectrometry: effect of solvent composition.

http://dx.doi.org/10.21577/0100-4042.20170158

Publicado online: novembro 28, 2017
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EXPERIMENTO DIDÁTICO DE QUIMIOMETRIA PARA O MAPEAMENTO DE PELLETS FARMACÊUTICOS UTILIZANDO ESPECTROSCOPIA DE IMAGEM NA REGIÃO DO INFRAVERMELHO PRÓXIMO E RESOLUÇÃO MULTIVARIADA DE CURVAS COM MÍNIMOS QUADRADOS ALTERNANTES: UM TUTORIAL, PARTE IV

José Augusto Da-Col; Willian Francisco Cordeiro Dantas; Ronei Jesus Poppi

Didactic experiment based on the combination of Near Infrared Spectroscopy and Multivariate Curve Resolution to create a chemical imaging of pharmaceutical pellets to obtained the special distribution and spectral profile of each component in the system.

http://dx.doi.org/10.21577/0100-4042.20170149

Publicado online: novembro 8, 2017
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EXTRAÇÃO DO R-(+)-LIMONENO A PARTIR DAS CASCAS DE LARANJA: AVALIAÇÃO E OTIMIZAÇÃO DA VERDURA DOS PROCESSOS DE EXTRAÇÃO TRADICIONAIS

Tânia C. M. Pires; Maria Gabriela T. C. Ribeiro; Adélio A. S. C. Machado

For extraction of limonene, the steam distillation presents better overall greenness (green star metric) and higher throughput, but some other specific metrics indicate that extraction by solvents is greener.

http://dx.doi.org/10.21577/0100-4042.20170139

Publicado online: outubro 27, 2017
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CLORAÇÃO MECANOQUÍMICA DA ACETANILIDA

Silvio Cunha; Thiago Fontes; Daniel Moreira Araújo; Valéria Belli Riatto

A green solvent-free synthesis of 4-chloroacetanilide both under hand grinding and mechanical grinding of stoichiometric amounts of acetanilide with trichloroisocyanuric acid.

http://dx.doi.org/10.21577/0100-4042.20170138

Publicado online: outubro 27, 2017
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UNA DEFENSA DE LA PERSPECTIVA FORMATIVA DEL DESARROLLO PROFESIONAL DOCENTE EN LA PRÁCTICA EDUCATIVA DE LOS PROFESORES DE QUÍMICA

Ricardo Aponte-Buitrago

Teachers' Professional Development (TPD) is a set of learning opportunities, insights and discussions that improves the classroom practices of teachers. However, the relationship between TPD and educational practice in chemistry educators has not been widely discussed. A theoretical approach around its close link is analyzed.

http://dx.doi.org/10.21577/0100-4042.20170137

Publicado online: outubro 27, 2017
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ABORDAGEM DIDÁTICA PARA O DESENVOLVIMENTO DE MOLÉCULAS BIOATIVAS: REGRA DOS CINCO DE LIPINSKI E PREPARAÇÃO DE HETEROCICLO 1,3,4-OXADIAZOL EM FORNO DE MICRO-ONDAS DOMÉSTICO

Victória Laysna dos Anjos Santos; Arlan de Assis Gonsalves; Cleônia Roberta Melo Araújo

Didactic sequence of development of biative molecules approaching the Lipinski's five-rule and synthesis of 1,3,4-oxadiazole heterocycle using domestic microwave oven.

http://dx.doi.org/10.21577/0100-4042.20170135

Publicado online: outubro 16, 2017
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