One-pot four-component synthesis of polyfunctionalized 1,4-dihydropyridine derivatives was developed by a condensation of aldehydes, malononitrile, diethylacetylenedicarboxylate and aniline in the presence of choline chloride/urea as a deep eutectic solvent (DES)at room temperature.Moreover, an efficient method was reported for the synthesis of highly substituted 4H-chromenes through one-...

The increased demand for portable electronic devices and electric vehicles has resulted in an exponential increase lithium-ion battery (LIB) waste, becoming turn important secondary source critical metals. Electrowinning is a commonly used method to recover base precious metals from solution, which can also be valuable spent LIBs. This study unveiled the cobalt electrochemical recovery using mo...

Hydrogenation of sugars to alcohols is prime interest for food applications instance. Xylose obtained from the hemicellulose fraction lignocellulosic biomass can be hydrogenated xylitol. Herein, we conducted catalytic hydrogenation reactions in a non-conventional media approach by using choline chloride, non-toxic naturally occurring organic compound that form deep eutectic solvent with xylose....

A new direct method for the measurement of red cell lithium was compared with the indirect method. Good correlation (r = 0.97) was found and the coefficients of variation of the direct and indirect methods were 3.9% and 5.5%, respectively. In the direct method red cells suspended in choline chloride were centrifuged through dibutyl phthalate, which removes plasma adherent to the cells. A haemol...

The nanoscopic properties of highly diluted water solutions in choline chloride + lactic acid deep eutectic solvent was studied using molecular dynamics simulations as a function concentration and temperature with the objective characterize confinement solvents non-regular mechanism. allowed analysis changes response to presence well behaviour confined cavities. structural, energetic dynamic fa...

Formic acid/choline chloride (F-DES), one of high-efficiency deep eutectic solvents (DES) for lignocellulose pretreatment, has great potential in the production nanocellulose (NC). In this work, integrated preparation cellulose nanocrystals (CNCs) and nanofibrils (CNFs) was developed using F-DES pretreatment following ball milling. Then, properties resultant NC products (F-NC) were comprehensiv...

The possibility that the autonomic nervous system may influence the function of intestinal mucosa was investigated by assessing the effect of acetyl choline on ion transport in human intestine. Isolated pieces of stripped ileal mucosa were mounted in Perspex flux-chambers and bathed in isotonic glucose Ringer's solution. Acetyl choline caused a rise in mean potential difference (8.8-12.3 mV, P ...

The work of Moyer and du Vigneaud (1) has demonstrated that, of a considerable number of compounds related to choline, choline itself, betaine, its sulfur analogue dimethylthetin, and the dimethylethyl analogue of choline, i.e. dimethylethyl-P-hydroxyethylammonium chloride, are the only ones which will permit rat growth on a methionine-free homocystinecontaining diet. Subsequent work by Dubnoff...

Deep eutectic solvents (DES) are compounds of a hydrogen bond donor (HBD) and acceptor (HBA) that contain depressed melting point compared to their individual constituents. DES have been studied for use as carbon capture media biogas upgrading. However, contaminants’ presence in might affect the by DES. In this study, conductor-like screening model real (COSMO-RS) was used determine effect temp...