A method is described for the enrichment of very long chain fatty acids (VLCFAs) from total fatty acids of sugar cane wax and their identification as picolinyl esters by means of liquid chromatography–mass spectrometry with atmospheric pressure chemical ionization (LC–MS/APCI). The method is b...

Nitrilotriacetic acid terminated tethers for trapping of His-tagged proteins have been synthesized and characterized. Compound 1, containing a lipophilic cholesterol anchor, hydrophilic oligoethoxy chain linker, and nitrilotriacetic acid terminus, can be used for attaching His-tagged proteins to...

The X-ray structure of bovine β-lactoglobulin with the ligand 12-bromododecanoic acid as a model for fatty acids has been determined at a resolution of 2.23 Å in the trigonal lattice Z form. The ligand binds inside the calyx, resolving a long-standing controversy as to where fatty-acid like lig...

The U.S. Food and Drug Administration (FDA) defines trans-fatty acids (TFAs) as fatty acids containing one or more no conjugated double bonds in trans-configuration. In recent years, the Food and Agricultural Organization/World Health Organization (FAO/WHO, 2002. Food and Agriculture Organizatio...

Lactoglobulin is a globular milk protein for which physiological function has not been clarified. Due to its binding properties lactoglobulin might serve as a carrier for bioactive molecules. Binding of 12-, 14-, 16- and 18-carbon saturated fatty acids to bovine β-lactoglobulin has been charact...

[11C]-S-methyl-16-thiopalmitic acid (a) was developed with excellent heart-to-background uptake ratios and higher retention in heart. Myocardial uptake and metabolism of the tracer is markedly higher CPT I dependent. When compared to [11C]-S-methyl-14-thiomyristic acid (b), [11C]-S-methyl-12-thi...

Measurements of the extraction equilibria of copper(II) were carried out a 303 K with 2-butylthiododecanoic acid(2-BTDAHR), 2-bromododecanoic acid (2-BDAHR) and naphthenic acid(NAHR) in hexane. It was clarified that copper (II) is extracted according to the following stoichiometric r...

The present work explores the best conditions for the enzymatic synthesis of poly (ethylene glutarate) for the first time. The start-up materials are the liquids; diethyl glutarate and ethylene glycol diacetate, without the need of addition of extra solvent. The reactions are catalyzed by lipase...

In this work, the electrodeposition of zinc is carried out from a chlorides-free organic solution based on ethylene glycol (EG) and acetate precursor salts. The formation of an EG-complex with zinc was observed through 1H NMR. The electrochemical characterization was performed by means of cyclic...

Shear thickening fluids have found many applications in energy damping materials such as sports guards and liquid body armors. Therefore, an additive which could tailor the dilatant properties of such fluids without significantly affecting other properties, especially zero shear viscosity, could...

The present work reports the coating of cotton fabrics with poly (ethylene glutarate) for the first time. Cotton fabric were soaked in diethyl glutarate and ethylene glycol diacetate without addition of extra solvent. The reactions were catalyzed by lipase from Thermomyces lanuginosus at 40 °C ...

Betulin and betulin diacetate (BDA) composites with polyethylene glycol (PEG) were obtained by ball-milling. In case of betulin - PEG mixtures, there was almost complete amorphization under ball-milling. On the contrary, there were no significant changes in the intensity of the reflections in th...

Three supported ionic liquids (SILs) were synthesized and characterized. And the catalytic activity for the preparation of ethylene glycol diacetate (EGDA) via the esterification of ethylene glycol (EG) and acetic acid were studied. Among them, [Silica-Ps-im]HSO4 performed best and was chosen as...

The conventional emulsifiable concentrate (EC) formulation contains a large amount of aromatic solvents, which causes adverse effects to both the environment and human health due to the toxicity of the solvents. Here, we developed a 2.5% lambda-cyhalothrin EC formulation with ethylene glycol dia...

In this paper, an innovative ethylene glycol diacetate (EGDA) synthesis process in a single reactive distillation column has been investigated. The consecutive, reversible second-order esterification of ethylene glycol (EG) with acetic acid (HAC) to ethylene glycol monoacetate (EGMA) and ethylen...

Four piperazines, having bis[(methoxycarbonyl)alkyl] groups (CH2CH2C(O)OMe (1), CH(CH3)C(O)OMe (2), CH2CH(CH3)C(O)OMe (3) and CH(CH3)CH2C(O)OMe (4) at the 1- and 4-positions of the piperazine ring), were subjected to electrochemical fluorination (ECF). Two bis[(methoxycarbonyl)alkyl] derivatives...

The reactions of fluoroalkanesulfonyl azides 1 with some electron-rich olefins have been studied. Alkyl vinyl ethers reacted with 1 readily at 0 °C or room temperature (RT) and did not give the corresponding N-fluoroalkanesulfonyl azilidines but 1-fluoroalkanesulfonyl-1,2,3-triazolines 3, which...

We report a new in situ borylation method using tetrakis(dimethylamino)diboron, DMA4B2, in the presence of a diol. Our method uses standard borylation conditions and readily available Pd-catalysts. The scope of this method includes aryl halides and triflates as well as vinyl halides and triflate...

The electrochemical oxidation of N,N,N′,N′-tetramethyl-1,4-phenylenediamine (1), 9,10-bis(dimethylamino)anthracene(2) and 3,6-bis(dimethylamino)durene (3) has been studied at glassy carbon electrodes in acetonitrile. 1 shows two one-electron oxidation steps with the normal ordering of potentia...

Semiempirical PM3 calculations were performed on several organolithium complexes with (R,R)-2,3-dimethoxy-1,4-bis(dimethylamino)butane. The calculations showed that the ligand binding mode is dependent on the aggregation state of the organolithium, and may bind via the nitrogen atoms, oxygen ato...