Ten putative resistant and two susceptible Rapistrum rugosum populations originating from Greece were studied for resistance to acetolactate synthase (ALS)-inhibiting herbicides, using dose–response assays, sequencing of als gene and in vitro ALS activity assays. The dose–response assays showe...

In this paper, a high performance liquid chromatographic method with fluorescence detection (HPLC-FL) for the determination of fenfluramine (Fen) and norfenfluramine (Norf) in human hair as biomarker metabolites of N-nitrosofenfluramine (N-Fen) is described. Washed and cut hair segments were ext...

The role of mitochondrial membrane permeability transition in N-nitrosofenfluramine-induced cell injury was studied in mitochondria and hepatocytes isolated from rat liver. Mitochondrial permeability transition has been proposed as a common final pathway in acute cell death through mitochondrial...

The relationship between cytotoxicity induced by N-nitrosofenfluramine and mitochondrial or glycolytic adenosine triphosphate (ATP) synthesis-dependent intracellular bioenergetics was studied in isolated rat hepatocytes. The supplementation of fructose, an ATP-generating glycolytic substrate, to...

The sulfonic acid resin Dowex® 50W × 8 can be used to replace mineral acids in the reaction between p-hydroxymandelic acid and urea in water or NaCl solutions. The synthesis of p-hydroxymandelic acid is efficiently carried out using NaOH to promote the reaction between phenol and glyoxylic acid...

Mandelic acid is an important aromatic fine chemical and is currently mainly produced via chemical synthesis. Recently, mandelic acid production was achieved by microbial fermentations using engineered Escherichia coli and Saccharomyces cerevisiae expressing heterologous hydroxymandelate synthas...

The thermal treatment of N-(2-propenyl)-1-naphthylamines provided the expected aza-Claisen rearranged products, 2-(2-propenyl)-1-naphthylamines and benz[g]indoles, these last derived from an intramolecular hydroamination reaction on those primary products. The 2-(2-propenyl)-1-naphthylamines wer...

The influence of the nature of the inorganic ions (Cl−, Br−, and ClO4−) and of NaBr concentration on the process of simultaneous adsorption of the respective dodecyltrimethylammonium salts (chloride, bromide, and perchlorate) and sodium hexylsulfate at the free surface of solutions containing Na...

To reveal the interaction between cationic fluorocarbon and cationic hydrocarbon surfactants, the mixed critical micelle concentration (CMC) of diethanolheptadecafluoro-2-undecanolmethylammonium chloride (DEFUMAC) and dodecyltrimethylammonium chloride (DTAC) in aqueous solution was determined us...

The cationic surfactant dodecyltrimethylammonium bromide (DTAB) enhances the catalytic of lead(II) on the oxidation of Pyrogallol Red (PR) by peroxodisulphate. Lead(II) accelerates this reaction by forming a complex with PR which concentrates on the micellar surface. The micellar catalysis of DT...

The motion of a rod-like molecule in polar, monohydroxy alcohols and micelles was investigated by taking DTDCI (3,3′-diethylthiadicarbocyanine iodide) as probe fluorophore. The DTDCI molecule is capable of photoisomerization via a torsional motion across its cyanine bridge. While the photoisome...

Bromide and iodide ions were determined simultaneously by capillary isotachophoresis using an aqueous electrolyte system; the separation principle was based on the ion-pairing equilibria between tetradecyldimethylbenzylammonium ion and these anions in the leading electrolyte. The interaction bet...

Mixed micelle formation and interfacial properties of aqueous binary surfactant combinations of dodecyltrimethylammonium bromide (C12TAB) and tetraethyleneglycol mono-n-dodecyl ether (C12E4) at 30 °C in absence and presence of sodium propionate (NaPr) have been investigated. The critical micell...

The reaction involving the acid-catalyzed reduction of hydrogen peroxide by iodide ions has been used to study the competitive counterion binding of hydrogen ions to sodium dodecyl sulfate (SDS) micelles and iodide ions to both dodecyltrimethylammonium bromide (DTAB) and dodecyltrimethylammonium...

This work establishes a highly sensitive and simple stripping voltammetric method for the direct determination of trace iodide. In the presence of abounding bromide and appropriate amount of cetylpyridine bromide (CPB), the iodine was accumulated on the glassy carbon electrode surface as ion ass...

Readily available methyl hydrogen (R)-3-methylglutarate(2) is a useful chiral building block for the synthesis of several biologically active compounds. Enantiomerically pure (R)-2 has been employed to synthesize stereospecifically each of the two enantiomers, 1a and 1b, of 10-methyl-2-tridecano...

The total fatty acids (FA) composition of Blumeria graminis f.sp. tritici conidia, the causal agent of wheat powdery mildew, was analyzed as a function of their age. A total of 19 FA (C12–C24 saturated and unsaturated) and unusual methoxylated fatty acids (mFA) were detected in young, intermedi...

We investigated the fatty acid composition of the total lipids from the red alga Schizymenia dubyi (Gigartinales, Gymnophlaeaceae) harvested in Sicily. Twenty-four fatty acids were identified as methyl esters, including C14C28 saturated acids (77% of total acid mixture) and three hydroxylated ...

The equilibrium p-nitrobenzamide solubility in mixtures of dimethyl sulfoxide (DMSO, 1) + water (2), ethanol (1) + water (2), isopropanol (1) + water (2) and ethylene glycol (EG, 1) + water (2) was determined with a shake-flask method from (293.15 to 328.15) K under atmospheric pressure (101.1 k...

The photolysis of the 7-acetoxybenzopyran derivatives 1a-5a has been carried out. Chromene 1a was found to undergo extensive photopolymerization. Chromanone 2a underwent a rather inefficient photo-Fries rearrangement to the 6 - and 8 - acetyl derivatives 2b and 2c. Diacetoxychromene 3a gave the ...