3,4-Dihydropyrimidin-2(1H)-ones were synthesised in high yields by one-pot three-component Biginelli condensation in the presence of room temperature ionic liquids such as 1-n-butyl-3-methylimidazolium tetrafluoroborate (BMImBF4) or hexafluorophosphorate (BMImPF6) as catalysts under solvent-free and neutral conditions. © 2001 Elsevier Science Ltd. All rights reserved. Recently, the interest in ...

In neuroscience the use of a microelectrode array allows detection neuroelectric signals with high temporal resolution in confined space within tissue, while two-photon laser scanning microscopy provides spatial wide region interest. The combination these two techniques promises better understanding operation neural pathways. To facilitate this connection, we studied direct electrochemical depo...

A green method for the synthesis of high-performance diketopyrrolopyrrole pigments using diethyl succinate in the presence of mixture of ionic liquids is reported. Although, alkaline condition is needed in the succinate ester route for synthesis of the pigments, in the present study, the replacement possibility of conventional organic base by mixture of BMIMOH and BMIMBF4 ionic liquids was inve...

The nitrofurazone (NF) electrochemical reduction has been studied by cyclic voltammetry (CV) and square wave (SWV) in non-aqueous medium using three different ionic liquids (IL): BMImTf2N, BMImBF4 BMMImTf2N, having a carbon fiber microelectrode as working electrode. In all of them, two reversible cathodic peaks were recorded for NF. Under higher frequency values, only one peak was registered. s...

Organophosphophorus compounds (OP) has been widely used as pesticides and as warfare nerve agents. They act by phosphorylating the hydroxyl group of the Ser 203 residue of the Acetylcholinesterase (AChE) active site, inhibiting its catalytic activity, causing the cholinergic Syndrome [1]. Currently, the OP poisoning treatment consists in the use of reactivators, for example oximes, a class of c...

The mixture of ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, bmimBF4) and water (2.5%, molar fraction) under isothermal conditions at 80 degrees C was investigated by FTIR spectroscopy and two-dimensional correlation infrared spectroscopy (2D-IR) methods. Three regions were focused: the OH stretching band of water (3755-3300 cm (-1)), the stretching band of CH on the imidazole ri...

Photodetectors (PDs) based on perovskite nanowires are among the most promising next-generation photodetection technologies; however, their poor long-term stability is biggest challenge limiting commercial application. Herein, an ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), incorporated as additive into methylammonium lead triiodide (MAPbI3) nanowires; this not only ef...

Room-temperature ionic liquids (RTILs) have been shown to have a significant effect on the redox potentials of compounds such as 1,4-dinitrobenzene (DNB), which can be reduced in two one-electron steps. The most noticeable effect is that the two one-electron waves in acetonitrile collapsed to a single two-electron wave in a RTIL such as butylmethyl imidazolium-BF4 (BMImBF4). In order to probe t...