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Open Access/APCs

Forthcoming Papers Special Issue Brazilian Researcher Abroad

Articles published online ahead of print

Articles J. Braz. Chem. Soc. 2018

Heterologous Expression of a Putative ClpC Chaperone Gene Leads to Induction of a Host Metabolite

Jana Braesel ; Alessandra S. Eustáquio

By attempting to heterologously express a biosynthetic gene cluster identified via a resistance-gene-guided approach, we unexpectedly observed induction of a host metabolite. Transcriptional analysis and literature precedence suggest that induction was caused due to the expression of a putative caseinolytic protease C (ClpC) chaperone gene present in the gene cluster.


Published online: December 3, 2018.

J. Braz. Chem. Soc. 2018

Quantum Chemical Investigation of the Intramolecular Copigmentation Complex of an Acylated Anthocyanin

Juanjuan He; Xue Li; Gustavo T. M. Silva ; Frank H. Quina; Adelia J. A. Aquino

An ab initio quantum chemical investigation of the spectroscopic properties of the intramolecular copigmentation complex of an acylated anthocyanin.


Published online: November 29, 2018.

J. Braz. Chem. Soc. 2018

Lignin-First Biorefining of Lignocellulose: the Impact of Process Severity on the Uniformity of Lignin Oil Composition

Roberto Rinaldi ; Robert T. Woodward; Paola Ferrini; Hebert J. E. Rivera

In the lignin-first biorefining by H-transfer reactions, process severity impacts on the uniformity of lignin-products' mixture, as addressed in this report.


Published online: November 26, 2018.

J. Braz. Chem. Soc. 2018

Identification of Antifungal Compounds from the Root Bark of Cordia anisophylla J.S. Mill.

Quentin Favre-Godal; Sébastien Pinto; Stephane Dorsaz; Adriano Rutz; Laurence Marcourt; Mahabir Gupta; Dominique Sanglard; Emerson F. Queiroz ; Jean‑Luc Wolfender

Antifungal compounds from the root bark of Cordia anisophylla J.S. Mill.


Published online: November 8, 2018.

Account J. Braz. Chem. Soc. 2018

Synthesis of Bis-Strychnos Alkaloids (-)-Sungucine, (-)-Isosungucine, and (-)-Strychnogucine B from (-)-Strychnine

Senzhi Zhao; Christiana N. Teijaro; Heng Chen; Gopal Sirasani; Shivaiah Vaddypally; Owen O'Sullivan; Michael J. Zdilla; Graham E. Dobereiner ; Rodrigo B. Andrade

Concise syntheses of bis-Strychnos alkaloids (-)-sungucine, (-)-isosungucine, and (-)-strychnogucine B have been accomplished from (-)-strychnine. Computational chemistry was employed to rationalize the regiochemical course of key transformations therein.


Published online: November 6, 2018.

Articles J. Braz. Chem. Soc. 2018

Trace Element Analysis, Model-Based Clustering and Flushing to Prevent Drinking Water Contamination in Public Schools

Jake A. Carter; Bradley T. Jones; George L. Donati

Inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) and model-based clustering were used to identify schools more prone to drinking water contamination by As, Cd, Cr, Cu, Pb, Sb, Se and Tl. A 5-60 min flushing procedure is recommended to minimize potential contamination due to water flow stagnation during the summer break.


Published online: October 8, 2018.

Account J. Braz. Chem. Soc. 2018

Using Polymer Reaction Engineering Principles to Help the Environment: The Case of the Canadian Oil Sands Tailings

João B. P. Soares; Fernanda L. Motta

Typical water-based oil sands extraction process in northern Alberta, Canada and macroscopic schematic for settling tests on mature fine tailings (MFT) after treatment with polymer flocculants.


Published online: October 3, 2018.

Articles J. Braz. Chem. Soc. 2018

Synthesis of New 1,2,3-Triazolo-naphthalimide/phthalimide Conjugates via 'Click' Reaction: DNA Intercalation and Cytotoxic Studies

Nagula Shankaraiah; Niggula P. Kumar; Ramya Tokala; Bulusu S. Gayatri; Venu Talla; Leonardo S. Santos

1,2,3-Triazolo-naphthalimide/phthalimide conjugates have been synthesized directly from alkyl/benzyl bromides, sodium azide and alkynes by 1,3-dipolar cycloaddition catalyzed by bis[(tetrabutylammonium)di-µ-iodo-diiododicuprate(I)]. The title compounds were evaluated for their in vitro cytotoxic potential and DNA interaction.


Published online: June 11, 2018.

Online version ISSN 1678-4790 Printed version ISSN 0103-5053
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