Condensation products (oxazole derivatives) from the reaction of the coenzyme pyrroloquinoline quinone (PQQ) with several α-amino acids were successfully separated by capillary zone electrophoresis. Addition of a certain organic solvent such as dimethyl sulphoxide to the electrolyte solution is...

New class of hydrophobic ionic liquids based on bis(2,2,2-trifluoroethoxysulfonyl)imide ([(CF3CH2OSO2)2N]−, TFESI−) anion with various oniums, including N,N-dialkylimidazolium, tetraalkyl (ether-containing alkyl) ammonium, N-alkyl-N-methyl-pyrrolidinium, and -piperidinium, are prepared and chara...

The electrodeposition of lithium metal from room temperature ionic liquid (RTIL) electrolytes consisting of N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide (Pyr13[FSI]) with LiFSI, LiTFSI, LiBF4, LiPF6 or LiAsF6 salts onto Pt and Li electrodes was undertaken to identify mechanistic detai...

Lithium bis(fluorosulfonyl)imide (LiFSI) has been studied as conducting salt for lithium-ion batteries, in terms of the physicochemical and electrochemical properties of the neat LiFSI salt and its nonaqueous liquid electrolytes. Our pure LiFSI salt shows a melting point at 145 °C, and is therm...

The chemical–physical properties of hydrophobic ionic liquids, tailored as electrolyte components for supercapacitors and lithium batteries, were investigated and compared. The ionic liquid samples are based on bis(perfluroalkylsulfonyl)imide anions coupled with different types of cation. The e...

New solid polymer electrolytes (SPEs) comprising of lithium bis(fluorosulfonyl)imide (LiFSI) and high molecular weight poly(ethylene oxide) (PEO, Mv = 5 × 106 g mol−1) have been prepared and characterized, and are comparatively studied with the representative SPEs, Li[N(SO2CF3)2] (LiTFSI)/PEO, ...

Lithium bis(fluorosulfonyl)imide (LiFSI) is a promising salt that can possibly overcome the limitations of lithium hexafluorophosphate (LiPF6) in current Li-ion batteries (LIBs). Aluminum (Al) corrosion issue, however, is a major bottleneck for the wide use of LiFSI. This study investigates lith...

The binary eutectic mixture of lithium bis(fluorosulfonyl)imide (LiFSI) and potassium bis(fluorosulfonyl)imide (KFSI) with a molar ratio of xLiFSI: xKFSI = 0.41: 0.59 has been investigated as molten salt electrolyte for natural graphite/LiFePO4 lithium-ion cells at 80 °C. The electrochemical pe...

New hydrophobic ionic liquids based on (fluorosulfonyl)(pentafluoroethanesulfonyl)imide ([(FSO2)(C2F5SO2)N]−, FPFSI−) anion with various oniums, including imidazolium, tetraalkyl ammonium, pyrrolidinium, and piperidinium, were prepared and characterized. Their physicochemical and electrochemical...

We report an electrochemical study of end-capped glymes dissolving lithium salts as electrolyte solutions for lithium metal batteries. Various electrolyte formulations including triethylene and diethylene glycol dimethyl ethers as solvents and lithium salts employing bis(fluorosulfonyl)imide (FS...

The chemical structure of lithium salts is believed to play a pivotal role on the intrinsic properties of solid polymer electrolytes (SPEs), which are considered as an important element for accessing safe and reliable lithium batteries. Herein, we propose the use of lithium (fluorosulfonyl)(pent...

The solubilities of KF in tributyl phosphate, dimethyl sulfoxide, N,N-dimethylacetamide and 1,4-dioxane had been determined using a dynamic method at temperatures ranging from 300.87 to 359.50 K. The experimental data were correlated with the modified Apelblat equation. It provided the basic dat...

A gradient high-performance liquid chromatographic method for the quantification of rufloxacin and two of its metabolites in urine, N-desmethylrufloxacin and rufloxacinsulfoxide, has been developed and validated. Monkey urine samples were diluted ten times with distilled water and 20 μl were in...

A new catalytic system for enantioselective [2+2]-cycloaddition reaction of 2-methoxycarbonyl-2-cyclopenten-1-one with thioacetylene derivatives is described. The use of a catalytic amount (20–30 mol%) of copper(II) salt with chiral bis-pyridine ligand was found to be effective in promoting the...

In the reaction of N,N′-methylenebis[(4S,5R)-4-methoxycarbonyl-5-methyloxazolidine] (1) with CuCl2 or RuCl3 in alcoholic solvents novel complexes, bis[(4S,5R)-4-methoxycarbonyl-5-methyl-1,3-oxazolidine]copper(II) dichloride (2) and bis[(4S,5R)-4-methoxycarbonyl-5-methyl-2-oxazoline]-(4S,5R)-4-m...

A new original route for the construction of cage structures containing seven electron-withdrawing groups in a molecule is reported. This method is based on the reaction of stable organic cations with a cycloheptatrienyl anion totally substituted with methoxycarbonyl groups. After the formation ...

A new series of mononuclear copper(I) complexes 1–3 possessing functionalized 6-methoxycarbonyl-2,2′-bipyridine and phosphine mixed ligands have been synthesized and characterized. Each Cu(I) atom gives an N2P2 distorted tetrahedral configuration, in which the dihedral angles between two pyrid...

The first successful preparation of (2-methoxycarbonyl)allylboronates from (α-methoxycarbonyl)vinylalanate and halogenomethylboronate derivatives is described.

γ-Amino acids have attracted considerable attention as biologically active compounds in the central nervous system (CNS) of mammals. Over the last few years, significant interest in the stereoselective synthesis and practical application of linear and cyclic chiral γ-amino acids in the synthes...

This chapter focuses on the increasing number of protocols and procedures, reported in the literature since 1995, that have been utilized or developed for the synthesis of carboxylic acids. It addresses not only the large number of additional general methods, for example, the hydrolysis of ester...