نتایج جستجو برای: pyrrole

تعداد نتایج: 3583  

ژورنال: :international journal of new chemistry 0

abstract: electrical sensitivity of a boron nitride nanotube (bnnt) was examined toward pyrrole (c5h6n) molecule by using density functional theory (dft) calculations at the b3lyp/6-31g (d) level, and it was found that the adsorption energy (ead) of pyrrole on the pristine nanotubes is a bout -16.37kcal/mol. but when nanotube have been doped with si and al atomes, the adsorption energy of pyrro...

Meysam Maddahi Sayed Ali Ahmadi,

Reaction of Glycin with Malononitrile afforded respective Pyrrole. Pyrrole is one of the heterocyclic compounds with very important biological activities. Heterocycles are extremely important because of their wide range of applications that goes from their use as pharmaceuticals and agrochemicals to dyestuffs and additives. In this view, it was proposed to synthesize pyrrole-3-carbonitrile deri...

Abstract: Electrical sensitivity of a boron nitride nanotube (BNNT) was examined toward pyrrole (C5H6N) molecule by using density functional theory (DFT) calculations at the B3LYP/6-31G (d) level, and it was found that the adsorption energy (Ead) of pyrrole on the pristine nanotubes is a bout -16.37kcal/mol. But when nanotube have been doped with Si and Al atom...

Journal: :international journal of advanced biological and biomedical research 2013
sayed ali ahmadi meysam maddahi

reaction of glycin with malononitrile afforded respective pyrrole. pyrrole is one of the heterocyclic compounds with very important biological activities. heterocycles are extremely important because of their wide range of applications that goes from their use as pharmaceuticals and agrochemicals to dyestuffs and additives. in this view, it was proposed to synthesize pyrrole-3-carbonitrile deri...

Meysam Maddahi Sayed Ali Ahmadi,

Reaction of Glycin with Malononitrile afforded respective Pyrrole. Pyrrole is one of the heterocyclic compounds with very important biological activities. Heterocycles are extremely important because of their wide range of applications that goes from their use as pharmaceuticals and agrochemicals to dyestuffs and additives. In this view, it was proposed to synthesize pyrrole-3-carbonitrile deri...

2013
Hongyin Yin Ying Guo Tao Zeng Xiulan Zhao Keqin Xie

BACKGROUND The formation of pyrrole adducts might be responsible for peripheral nerve injury caused by n-hexane. The internal dose of pyrrole adducts would supply more information for the neurotoxicity of n-hexane. The current study was designed to investigate the tissue distributions of 2, 5-hexanedione (2,5-HD) and pyrrole adducts in rats exposed to n-hexane, and analyze the correlation betwe...

Journal: :iranian journal of pharmacology and therapeutics 0
e. atiax f. ahmad h. m. sirat d. arbain

phytochemical investigations of piper sarmentosum roxb., yielded four compounds; three amides, identified as 3-(3’,4’,5’-trimethoxyphenylpropanoyl) pyrrolidine, 3-(4’-methoxyphenylpropanoyl) pyrrole, n -(3-phenylpropanoyl) pyrrole and a sterol namely β -sitosterol . 3-(4’-methoxyphenylpropanoyl) pyrrole was found for the first time in this piper species. all chemical constituents were tested fo...

2014
Hongyin Yin Chunling Zhang Ying Guo Xiaoying Shao Tao Zeng Xiulan Zhao Keqin Xie

BACKGROUND Pyrrole adducts might be used as a biomarker for monitoring occupational exposure to n-hexane, but the Biological Exposure Indices of pyrrole adducts in serum and urine are still unknown. The current study was designed to investigate the biological exposure limit of pyrrole adducts for hazard assessment of n-hexane. METHODS Male Wistar rats were given daily dose of 500, 1000, 1500,...

ژورنال: :international journal of new chemistry 0

electrical sensitivity of a beryllium oxide nanotube (beont) was examined toward (c4h5n) molecule by using density functional theory (dft) calculations at the b3lyp/6-31(d) level, and it was found that the adsorption energy (ead) of pyrrole on the pristine nanotubes is   a bout -48.58kcal/mol. but when nanotubes has been doped with s and p atomes , the adsorption energy changed. calculation sho...

D. Arbain, E. Atiax, F. Ahmad, H. M. Sirat, V. Bhagwan Badgujar,

Phytochemical investigations of Piper sarmentosum Roxb., yielded four compounds; three amides, identified as 3-(3’,4’,5’-trimethoxyphenylpropanoyl) pyrrolidine, 3-(4’-methoxyphenylpropanoyl) pyrrole, N -(3-phenylpropanoyl) pyrrole and a sterol namely β -sitosterol . 3-(4’-Methoxyphenylpropanoyl) pyrrole was found for the first time in this Piper spe...

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