Theophylline is an inexpensive drug employed in asthma and chronic obstructive pulmonary disorder medications and is toxic at higher concentration. The development of a molecularly imprinted polymer based theophylline electrochemical sensor on glassy carbon electrode by the electropolymerization...

Four new silver(I) naphthalenedisulphonate complexes, [Ag2(1,5-nds) (β-Pic)4]·2H2O (1), [Ag2(1,5-nds)(γ-Pic)4]·6H2O (2), [Ag2(2,6-nds) (β-Pic)4] (3) and [Ag2(2,6-nds) (γ-Pic)4]·2H2O (4) have been synthesized using appropriate starting materials at ambient temperature and normal reaction c...

A range of chiral ester and chiral imide derivatives of 2-oxocyclohexanecarboxylic acid were utilised in double-Mannich reactions with bis(aminol)ethers to develop an asymmetric synthesis of azabicyclo[3.3.1]nonanes. An improved method for the double-Mannich reaction of β-ketoesters and bis(ami...

The thermal decomposition of four dialkyl esters of 2-chloro-2-(1-cyclohexenyl) ethylenylphosphonic acid has been investigated from room temperature to 600°C. This thermochemical decomposition proceeds as a three-step process. Independently of the thermal changes, the investigated esters inhibi...

Trans-1-cyclohexenyl-phenyl-methanone (2) and enol 4, both key intermediates in the title reaction, react with each other in a Michael-type addition to form predominantly enol 10. This enol, kinetically stable but too reactive to be isolated, reveals its presence in the irradiated solutions by f...

We have replaced the pyridyl ring of trovirdine with an alicyclic cyclohexenyl, adamantyl or cis-myrtanyl ring. Only the cyclohexenyl-containing thiourea compound N-[2-(1-cyclohexenyl)ethyl]-N′-[2-(5-bromopyridyl)]-thiourea (HI-346) (as well as its chlorine-substituted derivative N-[2-(1-cycloh...

New Hofmann type benzene clathrates in the form of M(CyHEA)2Ni(CN)4·2benzene (where CyHEA = 2-(1-cyclohexenyl)ethylamine and M = Ni or Cd) have been prepared in powder form and FT-IR and Raman spectra have been reported. The results suggest that title compounds are similar in structure to Hofma...

New Hofmann-Td- type complexes in the form of Ni(CyHEA)2M(CN)4 (where CyHEA = 2-(1-cyclohexenyl)ethylamine and M = Cd or Hg) have been prepared in powder form and their infrared (4000–100 cm−1) and Raman (2800–1650 cm−1) spectra have been reported. The thermal behaviour of these complexes has ...

New Hofmann type complexes in the form of M(CyHEA)2Ni(CN)4 (where CyHEA = 2-(1-cyclohexenyl)ethylamine; M = Ni or Co) have been prepared in powder form and their infrared spectra have been reported in the range of 4000–400 cm−1. The thermal behaviour of these complexes has been investigated by ...

2-Cyclohexenyl-1-phenyl-1H-benzo[d]imidazole (Hcyclopbi) and its heterocyclometalated iridium complexes bis[2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole](acetylacetonate)iridium(III) [(cyclopbi)2Iracac] and bis[2-cyclohexenyl-1-phenyl-1H-benzo[d]imidazole][2-(3-(trifluoromethyl)-1H-pyrazol-5-yl)...

Glycerol carbonate is one of the most potentially multifunction glycerol-derived compounds. Glycerol is an important by-product of the oleochemical industry. The oligomerization of glycerol carbonate, assisted by the glycerol, results in the production of polyhydroxylated oligomers rich in linea...

Papaverine is one of the earliest opium alkaloids for which a biosynthetic hypothesis was developed on theoretical grounds. Norlaudanosoline (=tetrahydropapaveroline) was claimed as the immediate precursor alkaloid for a multitude of nitrogen containing plant metabolites. This tetrahydroxylated ...

Three distinctly different isoforms. of S-adenosyl-l-methionine-(R,S)-tetrahydrobenzylisoquinoline-N-methyltransferases could be isolated from cell suspension cultures of Berberis koetineana. These isoforms were designated NMT-I, -II and -III. The three enzymes have different molecular weights (...

A newly verified adsorbent biofilm produced by Bacillus amyloliquefaciens DT was investigated for nitrite removal from aqueous solutions. The biofilm’s characteristics and adsorption mechanism were determined, with results indicating that nitrite ions were adsorbed onto the protonated amine sit...

Epidemiological studies and animal experiments have suggested that exposure to Di-(2-ethylhexyl) phthalate (DEHP) is strongly associated with an increase in blood pressure. However, the mechanisms that result in the detrimental effects of DEHP exposure on blood pressure are unclear. In our study...

Di (2-ethylhexyl) phthalate (DEHP) and di-n-butyl phthalate (DBP) are important pollutants that contaminate agricultural soils. We determined the effects of di (2-ethylhexyl) phthalate (DEHP) and di-n-butyl phthalate (DBP) on the production of reactive oxygen species, photosynthesis, and activit...

ObjectiveDi (2-ethylhexyl) phthalate (DEHP) is a common phthalate derivative, interfering with normal function of reproductive system. The present study evaluated effects of melatonin on DEHP-induced testicular injury in mice.

Tetradecanol is a straight-chain saturated fatty alcohol purified from Dendropanax morbifera leaves. We found that tetradecanol (30 μM) reduced specifically the growth of T cells such as EL-4 T cell and isolated murine CD4+ T cells. In this study, we investigated the effects of tetradecanol on ...

The speciation of vanadium (V) extracted from acidic sulfate media by protonated trioctylamine in n-dodecane modified with 5% (wt) 1-tridecanol has been investigated by Fourier transformed infrared spectroscopy (FTIR) and 51V nuclear magnetic resonance spectroscopy (51V NMR). In aqueous sulfate ...

The chemical degradation of the mixture of trioctylamine (extractant) and 1-tridecanol (phase modifier) in n-dodecane in contact with acidic aqueous sulfate solutions containing vanadium(V) has been investigated. The degradation of trioctylamine and 1-tridecanol is slow at room temperature but i...