JBCS

A general overview on synthetic developments on stereoselective methodologies for Strecker, Mannich, Passerini and Ugi reactions are hereby presented.

Three new furofuran lignans were isolated from Aristolochia warmingii leaves together with twenty known compounds.

5-Hydroxymethylfurfural (HMF) synthesis intensifies the added value of agricultural wastes. Mid-infrared (MIR) spectra of the biomass, data fusion and principal component analysis (PCA) exposed the potential for HMF synthesis.

The use of the disposable tips (DPX) method with cork as extraction phase provided the determination of Yb by high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS) and greater sensitivity by the technique in petrochemical residue samples.

The water treatment sludge (WTS) is a residue composed of organic and inorganic matter, which can promote harmful changes to the environment. To propose a suitable purpose for this residue, this work evaluated the physical and mechanical properties of the reinforcement in a cementitious composite using WTS in replacement of the natural sand.

Corrosion behavior of aluminum alloy under a dry and wet cycle in deicing solution.

The mechanisms and kinetics of the degradation induced by ^•OH of the two most widely used drugs in COVID-19 (coronavirus disease 2019) pandemic, nitazoxanide and hydroxychloroquine, were calculated in aqueous environments. The results show that the deacetylation of nitazoxanide with formation of tizoxanide is kinetically the most favorable channel and for hydroxychloroquine, the most favorable channel is the addition of ^•OH at the aromatic ring.

Development and validation of a headspace gas chromatography with flame ionization (GC-FID) method for the determination of propanal, pentanal, hexanal, octanal, and trans-2-nonenal from cat food samples without requiring prior sample preparation techniques.

When submitted to cultivation through the one strain-many compounds (OSMAC) approach, Penicillium meliponae produced a diversity of azaphilones, which were characterized using liquid chromatography coupled with mass spectrometry (LC-MS/MS) and molecular networking.

All of zeolites were active for conversion of ethanol, with ethene being the main olefin formed.

Microcapsules containing essential oil from cloves have been synthesized by microfluidics technique and successfully applied to
Aedes aegypti larvae control.

Synthesis and application of basic 1,4-diazabicyclo[2,2,2]octane (DABCO)-functionalized magnetic nanoparticles (MNPs) as heterogeneous catalyst in Knoevenagel condensation and synthesis of isatin-β-thiosemicarbazones.

Coronavirus disease 2019 (COVID-19) infection changes the functions and morphology of human red cells.

This work reports the synthesis of a molecular imprinting hybrid polymer used in solid phase extraction for the adsorption of urinary S-phenylmercapturic acid (u-SPMA) in the evaluation of benzene exposure.

Rapid and environmentally friendly capillary electrophoresis (CE) method.