The N-arylation of amines with arylhydrazines has been developed, achieving the selective cross-coupling of aryl radicals with amines to form N-aryl amines. The reaction uses air as an oxidant, CoPc and Cu(OAc)2 as catalysts. The reaction proceeds under mild conditions in air through a relay pro...

SUMMARYExperimentally induced resistance to glycarbylamide and to 2-chloro-4-nitrobenzamide in 2 strains of Eimeria tenella was maintained during 20 passages through unmedicated chicks. The 2-chloro-4-nitrobenzamide-resistan t strain also retained its cross-resistance to nitrofurazone, zoalene a...

Three naphtho[b]thiophenes (asymmetric dibenzothiophene isomers) are minor components relative to the prevailing dibenzothiophene constituents of aromatic fractions of diagenetically oxidised marine sedimentary rocks. Interestingly, the rocks containing naphtho[b]thiophenes often also contain th...

This work emphasizes on the synthesis of two new acceptor units for donor (D)-acceptor (A)-based polymers used in photovoltaic devices, namely NT-Th and Th-NT-Th. Both the NT-based acceptors have been designed using 5,6-positions of benzothiadiazole (BT) and synthesized by Wittig coupling reacti...

The synthesis of 3-cyano-7-methoxy-3-methyl-4-oxo-1,2,3,4-tetrahydrodibenzothiophene is described. The latter could not be converted to B-nor-6-thiaequilenin, the thioster of equilenin since it failed to undergo Stobbe Condensation with diethyl succinate.

Measurements leading to the calculation of the standard thermodynamic properties for gaseous 1,2,3,4-tetrahydrodibenzothiophene (Chemical s registry number [16587-33-0]) are reported. Experimental methods include combustion calorimetry, adiabatic heat-capacity calorimetry, vibrating-tube densito...

The syntheses and structural analyses of a series of boron heterocycles derived from 2-(1H-benzimidazol-2-yl)-phenylamine (1), 2-(1H-benzimidazol-2-yl)-phenol (2), 2-(1H-benzimidazol-2-yl)-benzenedisulfide (3), 2-[3-(1,1,1,3,-tetramethyl-butyl)-phenyl]-2H-benzotriazole (4), 2-[3,5-bis-(1-methyl-...

Five 2-azinyl-2H-benzotriazoles (azinyl = 2-pyridinyl, 2-pyrazinyl, 2-pyrimidinyl, 6-methoxy-3-pyridazinyl, 5-methyl-2-pyridinyl were prepared and characterized as bidentate ligands. The electronic structure of these and related heterocycles was investigated spectroscopically and computationally...

In order to see the effects of non-bonding electrons in oxygen atoms on the cleavage of a bond between N-1 of the benzotriazole moiety and the α-carbon atom bonded to N-1 by lithium (6a) and sodium naphthalenides (6b), 2-[2-aryl-2-(benzotriazol-1-yl)ethyl]tetrahydro-2H-pyrans (4), and 2-[2-aryl...

Benzotriazoles (BTs) are regarded as contaminants of emerging concern. However, their transformation products (BTTPs) in aquifers remains poorly characterized. The present study is the first detailed report on profiles of the BTTPs in an urban oxic intergranular aquifer related to water type, la...

The reactivity of 2(2-hydroxy-5-vinyl)2H-benzotriazole (2H5V) structural units in a copolymer with methyl methacrylate (MMA) with respect to alkyl or peroxy radicals in the solid phase was studied. Alkyl radicals were generated through mechanical degradation of the copolymer and peroxy radicals ...

Benzotriazoles (BTs) are considered as Contaminants of Emerging Concern (CECs); however, information about their fate in aquifers continues to be absent. This was the focus of the present study, which provides the first evidence for relevant BTs' degradation products (BTTPs) in urban aquife...

Nickel oxide nanoparticles have been synthesized via heat-treatment of a new precursor nickel octanoate Ni(octa)2; (octa = octanoate); in the range of 400–900 °C. The effect of calcination temperature on particle size has been investigated. When the calcinations were conducted in air from 400 ...

A lithium based chicken bone (Li-Cb) composite has been synthesized by wet impregnation method followed by calcination at various temperatures (750, 800, 850, and 900 °C). The Li-Cb catalysts were characterized by Field Emission Scanning Electron Microscope (FESEM), Brunauer–Emmett–Teller sur...

Native and oxidized corn (Zea mays) starch/polystyrene (PS) blends containing glycerol as a plasticizer were prepared by reactive extrusion in a twin-screw extruder using zinc octanoate (Zn(Oct)2) as a catalyst, followed by compression molding. Blends were characterized in terms of their: averag...

The effect of composition and aggregative state (melt, mesophase, glass) on the coordination state of Co (II) ions in an octanoate ligand field has been studied for binary liquid crystalline systems based on cobalt (II) octanoate by the analysis of electronic absorption spectra. It has been show...

Volatile profiles of jujube fruits at different ripening stages were characterized by GC–MS and E-nose. Changes in the possible precursors of volatile components were also investigated. Four ripening stages were established: GM, green maturity; YM, yellow maturity; HRM, half-red maturity; RM, r...

2R-Benzyl-5S-tert-butoxycarbonylamino-4R-(tert-butyldimethylsilanyloxy)-6-phenyl-hexanoic acid, a hydroxyethylene dipeptide isostere corresponding to Phe–Phe, has been synthesized in a practical, stereocontrolled fashion from (l)-phenylalanine.

A series of phenanthro[9,10-d]imidazole/oxazole and acenaphtho[1,2-d]imidazole with different aryl groups at C2-position has been synthesized. These compounds were in vitro evaluated for antitumor activity against a panel of 60 human cancer cell lines. Compound 8 exhibits higher cytotoxicity tow...

Bromodomain-containing protein 4 (BRD4), an epigenetic reader of acetyl lysine, has emerged as a promising therapeutic target for many diseases including cancer, inflammation and heart failure. Our previous study reported that nitroxoline, an FDA approved antibiotic, showed potential BRD4 inhibi...