Emissions from fossil fuel combustion pose a serious threat to public health and =pose the need for animproved monitoring of polycyclic aromatic hydrocarbons (PARS), a major class of persistent organicpollutants. For this purpose the present study reports an investigation of the electronic structure of Pyrene byuse of different chemical models We also made a comparison between different chemica...

By the reaction of various amines with 3-chloropyridazines,several minaprine analogues were prepared.Most of them exhibited significant antidepressant activity.Compound 2a antagonizes reserpine action and neuroleptic-induced catalepsy in a dose-dependent manner. Keywords-disubstituted benzylidene pyridazine;3-amino pyridazine derivative,minaprine analogue;antidepressant activity Recently,it was...

Electroluminescent 9,10-diaryl anthracenes have been shown to be promising host and hole-transporting materials in organic electroluminescence due to their high thermal stability, electrochemical reversibility, and wide band gap useful for organic light-emitting diodes (OLEDs), especially blue OLEDs. Oxidation of cyclotriveratrylene (CTV) to the corresponding diketone and subsequent bromination...

In the present work a series of novel 2,4-disubstituted -1, 5 -diphenyl substituted -1H-imidazole derivatives were screened for anticancer activity using human liver cancer cell line. Derivatives were evaluated for anticancer activities against Hep G2 (Human liver cancer) cell lines. Newly synthesized compounds A-IVn, A-IVo,B-IVb, B-IVc, B-IVd, and B-IVe showed highly significant cytotoxic acti...

Various monoand disubstituted cinnamic acid derivatives and aromatic carboxylic acids with saturated side chains were incubated mainly with Bacillus, Candida, Hansenula, and Saccharo­ m yces strains. The cinnamic acids carrying a hydroxyand/or a methoxy group at the 3and/or 4-position of the benzene ring were decarboxylated with high yields. Most of the reactions were terminated within 24 to 48...

ABSTRACT A series of new benzimidazole and benzotriazole derivatives containing a tetrazole moiety was synthesized by N-alkylation of 5-aryltetrazole with 4,5,6,7-tetrabromo-1-(3-chloropropyl)-1H-benzimidazole and 4,5,6,7-tetrabromo-2-(3-chloropropyl)-2H-benzotriazole. The reaction was regioselective and mostly 2,5-disubstituted tetrazole derivatives were obtained. The effect of all synthesized...

Theoretical studies on anthracene and a series of its derivatives were performed using the AM1 method and DFT. Based on B3LYP/6-31G(d) optimized geometries, the electronic, IR and NMR spectra of anthracene oligomers were calculated using the Indo/Cis, AM1 and B3LYP/6-31G(d) methods, respectively. The energy gaps of the oligomers decreased and the main absorptions in the electronic spectra of th...