The paper presents a combined experimental and computational study of tricarbonyl complexes fac-[Re(CO)3(L1/L2)Cl] (1a/1b) (L1 = 2-(methylthio)-N-((pyridine-2-yl)methylene)benzenamine and L2 = 2-(ethylthio)-N-((pyridine-2-yl)methylene)benzenamine). The Schiff base ligands L1 and L2 have been syn...

Novel phthalocyaninates of terbium, erbium and lutetium, bearing 3-(ethylthio)phenyl peripheral groups, were synthesised with high yields. The complexes obtained were characterised by 1H nuclear magnetic resonance spectroscopy, Fourier-transform infrared spectroscopy and high-resolution mass spe...

The equilibrium solubility of 2,3-dihydro-6-propyl-2-thioxo-4(1H)-pyrimidinone in four neat solvents namely methanol, ethanol, n-propanol and isopropanol and co-solvent mixtures of methanol (1) + water (2), ethanol + water (2), n-propanol (1) + water (2) and isopropanol (1) + water (2) at temper...

Tandem reaction of ortho-hydroxy chalcone with ethyl 2-aroyl-1-chlorocyclopropanecarboxylates has been disclosed, affording facile synthesis of diversified tetrahydrocyclopropa[b]chromenes via electron-deficient cyclopropene intermediate.

A simple, highly useful synthesis of 1-(2-(4,5-dimethyl-2-phenyl-1H-imidazol-1-yl)ethyl)piperazine derivatives is achieved by a four component cyclo condensation of diacetyl, aromatic aldehyde, 2-(piperazin-1-yl)ethanamine and ammonium acetate using SO42−/Y2O3 as a catalyst in ethanol. The synth...

Cocrystallization of the imidazole derivatives, L1-L3, with a series of organic acids gave a total of five molecular salts with the compositions: (imidazole): (DL-10-camphorsulfonic acid) [(HL1+)·(cpsa−), cpsa− = DL-10-camphorsulfonate] (1), (imidazole): (3,5-dihydroxybenzoic acid) [(HL1+) · (...

The electronic absorption and fluorescence spectra of 2-aminopyrimidine (2APM), 2-amino-4-methylpyrimidine (2A4MPM), and 2-amino-4,6-dimethylpyrimidine (2ADMPM) with acetic acid (AcOH) were measured in isooctane (2,2,4-trimethylpentane) at room temperature. From the absorption spectra, a hydroge...

The effect of iodide ions on inhibitive performance of 1,4,6-trimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (TODPCN) on mild steel (MS) corrosion in 0.5 M H2SO4 was studied using gravimetric and electrochemical measurements. TODPCN inhibits the corrosion of MS to the extent of 62.3% at its l...

A microwave dielectric heating assisted liquid phase synthesis of 1,4-dihydropyridines, 3,4-dihydropyrimidin-2(1H)-ones, pyridines and polyhydroquinolines using task-specific ionic liquid as a soluble support was described. The efficiency of the ionic liquid phase organic synthesis (IoLiPOS) met...

3-Aryl-5-aroylindazoles were prepared by a simple two-stage protocol from 3,5-diaroyl-2,6-dimethylpyridines.

Elemental fluorine can be successfully used for fluorination of cubane derivatives. The nature of the products depends on the fluorination conditions: in CH3CN at −20 to −30°C, dimethyl 2-fluorocubane-1,4-dicarboxylate was obtained from dimethyl ester of 1,4-cubanedicarboxylic acid; in CF3COOH ...

Imidazopyrimidine derivatives are organic synthesized compounds with a pyrimido[1,2-a]benzimidazole as basic skeleton. They are known for their various biological properties and as an important class of compounds in medicinal chemistry. A new 1,4-dimethyl-2-oxo-pyrimido[1,2-a]benzimidazole hydra...

For development of anion exchange membrane (AEM) water electrolysis systems, a series of polymers was synthesised by reacting 2-mesityl-benzimidazole (BIM) and brominated poly-(2,6-dimethyl-1,4-phenylene oxide) (Br-PPO) in a Menshutkin reaction, and permethylating the attached BIM groups. The de...

Naphthalene catalyzed lithiation of 1,3-dimethyl-2-phenylimidazolidine led to cleavage of the benzylic carbon–nitrogen bond, with formation of an intermediate dianion. Under similar conditions, 1,3-dimethyl-2-(4-chlorophenyl)imidazolidine underwent regioselective cleavage of the aromatic carbon...

N-type single-walled carbon nanotubes fabricated by doping of organic dopant, 2-(2-methoxyphenyl)-1,3-dimethyl-2,3-dihydro-1H-benzo[d]imidazole, shows remarkable air-stability for over 90 days under atmospheric environment. Formation of stable complex between cationic dopant and anionic SWCNT is...

QA1 and QA3 are the derivatives of substituted 1,3-dimethyl-1H-quinoxalin-2-ones that may selectively antagonize P-glycoprotein (P-gp) in multidrug resistance (MDR) cancer cells. Herein, we examined the reversal effect of two compounds on MDR in adriamycin (Adr)-induced resistant K562/A02 cells....

Biosourced polyurethanes (PU) were synthesized from a serinol derivative containing a pyrrole ring, 2-(2,5-dimethyl-1H-pyrrol-1-yl)-1,3-propanediol (SP), and stable supramolecular interaction with multiwalled carbon nanotubes (MWCNT) was established. Synthesis of SP was solvent free and with hig...

A novel tetrakis(4-(5,5-dimethyl-2-phenyl-1,3-dioxan-2- yl)phenyl)germane (2) was synthesized by the reaction of germanium(IV) tetrachloride with 4-(5,5-dimethyl-2-phenyl-1,3-dioxan-2-yl)phenyllithium. Colorless plate-shaped single crystals obtained from recrystallization in ether were character...

The intermolecular [2 + 2] photocycloaddition of chalcones with 2,3-dimethyl-1,3-butadiene under visible-light irradiation for the synthesis of cyclobutane derivatives has been developed. Without using any photosensitizer, metallic catalyst and solvent, the reaction proceeded with high regiosele...

An efficient method for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and thiones through one-pot three-component reaction of ethyl acetoacetate, aryl aldehyde and urea or thiourea in ethanol using 3-[(3-(trimethoxysilyl)propyl)thio]propane-1-oxy-sulfonic acid as catalyst is described. The us...