نتایج جستجو برای: 5 dimethyl aniline

تعداد نتایج: 1238479  

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2003
Changchun Yuan Peng Nan Suhua Shi Yang Zhong

The essential oils from two Chinese endemic Meconopsis species, i. e., M. punicea and M. delavayi, were analyzed by using GC-MS for the first time. The major constituents were hexadecanoic acid (16.8%), 1,2-dimethyl naphthalene (11.4%), 1,4-dimethyl naphthalene (6.6%), 1,3-dimethyl-5-ethyl naphthalene (5.9%), and 3-methyl biphenyl (5.6%) for M. punicea, and hexadecanoic acid (9.9%), 1,2-dimethy...

Electrical sensitivity of a beryllium oxide nanotube (BeONT) was examined toward aniline (C6H5 NH2) 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 aniline on the pristine nanotubes is about -19.06kcal/mol. However, when nanotube has been doped by P a...

Introduction and purpose: Aniline is a simple aromatic compound that has a wide application in various industries. This compound has mutagenic and carcinogenic properties. Given the solubility and high toxicity of aniline, the entrance of this compound into the surface and ground water can endanger human and environment and disturb aqueous species life . Regarding this, the&nbsp...

Journal: :Applied and environmental microbiology 1992
J T Spadaro M H Gold V Renganathan

Under nitrogen-limiting, secondary metabolic conditions, the white rot basidiomycete Phanerochaete chrysosporium extensively mineralized the specifically 14C-ring-labeled azo dyes 4-phenylazophenol, 4-phenylazo-2-methoxyphenol, Disperse Yellow 3 [2-(4'-acetamidophenylazo)-4-methylphenol], 4-phenylazoaniline, N,N-dimethyl-4-phenylazoaniline, Disperse Orange 3 [4-(4'-nitrophenylazo)-aniline], and...

2012
Fouad M. Fouad Patrick G. Farrell

Rates of H C N elimination from polycyanides N,N-dimethyl-4-(l ,2 ,2-tricyanoethyl)aniline (1), 9-cyano-9-dicyanomethyl fluorene (2), 1,1-diphenyl-1,2,2-tricyanoethane (3), and 2-phenyl-l,l,2-tricyanopropane (4) have been studied in methanol. Elimination from 1 occurs via (E 1 c B ) r , mechanism. On the other hand olefin formation from 2 4 has been shown to occur via (E l)anion pathway. Heavy ...

Journal: :Mutagenesis 1997
R J Brennan R H Schiestl

The carcinogen aniline is negative in the Ames Salmonella mutagenicity assay. Aniline does, however, induce intrachromosomal recombination between repeated sequences in Saccharomyces cerevisiae, resulting in deletion (DEL) of intervening sequences. We have investigated whether the generation of oxidative free radical species by aniline and/ or its metabolites may be responsible for its recombin...

Journal: :caspian journal of environmental sciences 2013
h. sid kalal n. pakizevand h. hoveidi m. taghiof s. tavangari

an ion imprinted polymer (iip) based on aniline-formaldehyde was synthesized and then modified with extra aniline as cross-linker in the presence and absence of sr (ii) as the template to produce ion imprinted poly(aniline-formaldehyde) (iipaf) and non imprinted poly(aniline-formaldehyde) (nipaf). the sorbent was characterized by fourier transform infrared spectroscopy and was used for solid ph...

2009
Víctor M. Jiménez-Pérez Sylvain Bernès Blanca M. Munõz Boris I. Kharisov Andrea V. Vela

The title salt, C(21)H(27)N(2) (+)·Cl(-) resulted from the condensation between 2,6-dimethyl-aniline and acetyl-acetone in acidified ethanol. The bulky cation is stabilized in a β-imino-enamine tautomeric form, and presents a W-shaped conformation. The benzene rings are arranged almost parallel, with a dihedral angle of 6.58 (4)° between the mean planes. Both N-H groups in the cation form stron...

Journal: :Japanese journal of pharmacology 1983
Y Aniya K Matsusaki

Enhancement of aniline hydroxylation by Habu snake venom was studied in vitro. The fraction which was isolated from Habu venom through column chromatography caused the enhancement of aniline hydroxylation of hepatic microsomes obtained from untreated rats. This fraction was heat stable and free from phospholipase activity. Enhancement of aniline hydroxylation was not clear in crude Habu venom o...

Journal: :Environmental Health Perspectives 1995
D S Kosson S V Byrne

The interactions of aniline with soil at an industrial spill site were investigated. Sorption of aniline to the soil was observed to occur through a two-step mechanism. The first step was an ion exchange process with the protonated amine serving as an organic cation. This step was influenced by solution pH and ionic composition. The second step was covalent bonding most likely with quinone moie...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید