Treatment of 3-alkynylpyridine N-oxides with SeBr4 affords 2-R-3-bromoselenopheno[2,3-b]pyridine N-oxides, whose structures were confirmed by 1H, 13C, 77Se and 15N NMR spectroscopy and X-ray diffraction.

An inducible benzoate-4-hydroxylase has been partially purified from crude extracts of the mycelial felts of Aspergillus niger. This enzyme catalyzes the transformation of benzoate to p-hydroxybenzoate with equimolar consumption of NADPH and O2. It requires tetrahydropteridine as a prosthetic gr...

Zygosaccharomyces bisporus is a moderately halotolerant yeast isolated from highly sugary and salty foods. We performed various evident biochemical and in vivo experiments as first of its kind to sketch out the possible overlay of salt tolerance mechanism in this model organism. The growth and s...

The pine wood nematode (Bursaphelenchus xylophilus) causes pine wilt disease, which is a major problem affecting pine forests. This study aimed to identify metabolites from Sparassis latifolia that have nematicidal activity and to investigate the effect of water-soluble formulations of the activ...

Phase transition behavior of 4-cyano-3-fluorophenyl 4′-n-octylbenzoate (8CFPB) was studied by differential scanning calorimetry (DSC), polarizing microscopy, FT-IR spectroscopy and X-ray diffraction. Liquid-like and solid-like polymorphism with monotropic system of phases was identified. Assign...

A series of 2-(2-(1H-benzoimidazol-2-yl)quinolin-8-yliminomethyl)phenol derivatives and their zinc complexes (C1–C5) were synthesized and fully characterized. The molecular structure of the representative complex C2 was determined by single crystal X-ray diffraction, which revealed that the zin...

A series of 2-(chloro-substituted-1H-benzoimidazol-2-yl)-6-(1-aryliminoethyl)pyridines (L1–L6) was synthesized and fully characterized. They reacted with NiCl2 or (DME)NiBr2 to form the corresponding N^N^N tridentate nickel dichlorides (C1–C6) or dibromides (C7–C12). All nickel complexes were...

We want to achieve the synthesis of 3-(1H-benzoimidazol-2-yl)-7-(diethylamino) coumarin-2-one (1), 3-(1H-benzoimidazol-2-yl)-7-(dimethylamino) coumarin-2-one (2), 3-(1H-benzoimidazol-2-yl) coumarin-2-one (3) that are important dyes in industries (Soko owska et al., 2001). Methods for the synthes...

Two new complexes with the formulas [Cd(bimt)(adi)]n (1) and {[Cd(bimt)(adi)0.5Br]·H2O}n (2) were synthesized through reactions of 2-((benzoimidazol-yl)methyl)-1H-tetrazole (bimt) with Cd(II) salts in the presence of adipic acid (H2adi). Single crystal X-ray analysis reveals that complex 1 show...

Two equivalents of dimethyl 1,3-acetonedicarboxylate reacted with α,β-unsaturated aldehydes to form novel polysubstituted cyclohexanones 2 in an efficient one-step procedure. The reactions proceeded at room temperature in the presence of catalytic amount of sodium methoxide, affording the prod...

An library of unresolved racemic Mannich bases incorporating two stereogenic carbon centers was evaluated for antibacterial activity against clinically isolated Gram-positive bacteria i.e. Staphylococcus aureus, Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa and for antifunga...

The asymmetric double Michael additions of curcumins to nitroalkenes to afford highly functionalized cyclohexanones have been carried out for the first time. A combination of a dihydrocinchonine-thiourea organocatalyst and K2CO3 was found to be the most effective in obtaining the desired cyclohe...

An organocatalyzed endo [4+2] cycloaddition between enones as pro-diene and allylidene malononitrile as dienophile leading to cyclohexanones with two 1,3-related stereogenic centres and an all-carbon quaternary centre has been developed. The reactions were performed under ‘green reaction’ cond...

A series of eleven new 5-arylazo-6-hydroxy-4-(4-methoxyphenyl)-3-cyano-2-pyridone dyes was synthesized and their absorption spectra were recorded in twenty solvents in the range 300–600 nm. Different solvent parameters, such as microscopic solvent polarity, ETN, relative permittivity, εr, refr...

The recently discovered cyclohexanone monooxygenase from Thermocrispum municipale (TmCHMO) was employed in the preparation of different optically active sulfoxides. This novel Baeyer-Villiger monooxygenase (BVMO) shows a similar substrate specificity and selectivity when compared with the protot...

In continuation of our research for novel human dihydroorotate dehydrogenase (hDHODH) inhibitors, herein we reported design, synthesis and pharmacological evaluation of novel substituted quinoline-2-carboxamide derivatives. Human DHODH enzyme inhibition assay was used to screen the synthesized c...

Among the emerging new psychoactive substances (NPS), compounds carrying an N-ortho-methoxybenzyl substituent, the so-called NBOMes, represented a highly potent group of new hallucinogens. Recently, 3,4-dimethoxyamphetamine (3,4-DMA)-NBOMe and 4-methylmethamphetamine (4-MMA)-NBOMe occurred, but ...

A series of novel 3,5-disubstituted isoxazoles have been synthesized, using a new, green, and versatile “one-pot three-steps” methodology. The key step is an oxidative 1,3-dipolar cycloaddition under ultrasonic irradiation, occurring in aqueous media, and mediated by cerium (IV) ammonium nitra...

The present methodology describes two efficient, eco-friendly, and simple routes for the cascade synthesis of biologically relevant pyrazole scaffolds using Ag/TiO2 nano-thin films as a green, robust, and recyclable catalyst. Ag/TiO2 nano-thin films were successfully applied for the synthesis of...

Despite the presence of a multitudinous pharmacotherapy, diabetes-induced depressive disorder remains undertreated. Evidence suggests that brain serotonergic deficits are associated with depressive-like behavior in diabetes and that 5HT3 receptor (5HT3R) antagonists have serotonergic facilitator...