Showing 1-30 of 52 results for "185507"
Mir Ali Farajzadeh et al.
Biomedical chromatography : BMC, 29(12), 1921-1931 (2015-05-28)
In present study, a simultaneous derivatization and air-assisted liquid-liquid microextraction method combined with gas chromatography-nitrogen phosphorous detection has been developed for the determination of some phenolic compounds in biological samples. The analytes are derivatized and extracted simultaneously by a fast...
Donggeun Sul et al.
Environmental research, 118, 25-30 (2012-09-04)
The Korea National Survey for Environmental Pollutants in the human body conducts representative Korean population studies, which were first initiated in 2005 in Korea. This study was conducted from 2008 to 2009 to determine the exposure levels of polycyclic aromatic...
Danning Zhang et al.
Environmental science & technology, 52(21), 12402-12411 (2018-10-03)
Micrometer-sized titanium dioxide hierarchical spheres (TiO2-HS) were assembled from nanosheets to address two common limitations of photocatalytic water treatment: (1) inefficiency associated with scavenging of oxidation capacity by nontarget water constituents and (2) energy-intensive separation and recovery of the photocatalyst...
Laura E Korhonen et al.
Journal of medicinal chemistry, 48(11), 3808-3815 (2005-05-27)
The purpose of this study was to determine the cytochrome P450 1A2 (CYP1A2) inhibition potencies of structurally diverse compounds to create a comprehensive three-dimensional quantitative structure-activity relationship (3D-QSAR) model of CYP1A2 inhibitors and to use this model to predict the...
Konstantin Yuryevich Koltunov et al.
Chemical & pharmaceutical bulletin, 60(6), 722-727 (2012-06-13)
It is known that 1-naphthol, as a result of superelectrophilic (dicationic) activation in superacid media, is able to react with such deactivated aromatic compound as o-dichlorobenzene to give 4-(3,4-dichlorophenyl)-1-tetralone (2), which is a highly valuable intermediate in the synthesis of...
Ejaz Ahmad et al.
PloS one, 7(6), e38372-e38372 (2012-06-12)
Structural changes in human serum albumin (HSA) induced by the pollutants 1-naphthol, 2-naphthol and 8-quinolinol were analyzed by circular dichroism, fluorescence spectroscopy and dynamic light scattering. The alteration in protein conformational stability was determined by helical content induction (from 55...
Supriti Sen et al.
The Analyst, 137(17), 3975-3981 (2012-07-13)
An efficient water soluble fluorescent Al(3+) receptor, 1-[[(2-furanylmethyl)imino]methyl]-2-naphthol (1-H) was synthesized and characterized by physico-chemical and spectroscopic tools along with single crystal X-ray crystallography. High selectivity and affinity of 1-H towards Al(3+) in HEPES buffer (DMSO/water: 1/100) of pH 7.4...
Xixi Song et al.
Nature communications, 2, 524-524 (2011-11-10)
Cross-coupling reactions typically rely on the use of transition metal catalysis. However, although achieving this process using metal-free organocatalysts is highly challenging, it could offer unique opportunities to discover novel bond-forming strategies in organic synthesis. Here we report a new...
Michael Holtz-Mulholland et al.
Chemical communications (Cambridge, England), 49(18), 1835-1837 (2013-01-30)
The reactivity of a Cu catalyst for oxidative coupling is modulated by a small molecule additive, diethyl malonate, that slows over-oxidation of 2-naphthols. Efficient heterocoupling between electron-rich and electron-poor 2-naphthols/2-naphthylamines affords C(1)-symmetric BINOLs with yields ranging from 35-98%.
Kalla Reddi Mohan Naidu et al.
Molecules (Basel, Switzerland), 17(6), 7543-7555 (2012-06-20)
Polyethyleneglycol bound sulfonic acid (PEG-OSO₃H), a chlorosulphonic acid-modified polyethylene glycol was successfully used as an efficient and eco-friendly polymeric catalyst in the synthesis of 14-aryl/heteroaryl-14H-dibenzo[a,j]xanthenes obtained from the reaction of 2-naphthol and carbonyl compounds under solvent-free conditions with short reaction...
Bram Baert et al.
Bioorganic & medicinal chemistry, 15(22), 6943-6955 (2007-09-11)
A set of 116 structurally very diverse compounds, mainly drugs, was characterized by 1630 molecular descriptors. The biological property modelled in this study was the transdermal permeability coefficient logK(p). The main objective was to find a limited set of suitable...
Jie Ying Gao et al.
Journal of computational chemistry, 33(2), 220-230 (2011-11-02)
For the first time the computed mechanisms for the novel reaction of 2-naphthol with N-methyl-N-phenylhydrazine, leading to 1-amino-2-naphthol (Tang et al., J Am Chem Soc 2008, 130, 5840), have been investigated using the density functional theory. Four distinct possible pathways...
Kristen W Smith et al.
Journal of exposure science & environmental epidemiology, 22(1), 35-45 (2011-11-03)
There is a potential for widespread occupational exposure to jet fuel among military and civilian personnel. Urinary metabolites of naphthalene have been suggested for use as short-term biomarkers of exposure to jet fuel (jet propulsion fuel 8 (JP8)). In this...
Yaqi Hu et al.
The Analyst, 140(13), 4662-4667 (2015-05-20)
Direct and rapid detection of 1-hydroxypyrene (1-OHP) is of great importance owing to its high carcinogenicity, teratogenicity and toxicity. In this study, a simple colorimetric assay for rapid determination of 1-OHP is reported, which is based on non-crosslinking aggregation of...
Giorgio Ottaviani et al.
Journal of medicinal chemistry, 49(13), 3948-3954 (2006-06-23)
This work was devoted to the search for new artificial membranes allowing a rapid evaluation of passive human skin permeation of compounds with a parallel artificial membrane permeability assay (PAMPA). Effective permeability coefficients (Pe) determined for a set of compounds...
Aaron M Fleming et al.
The Journal of organic chemistry, 76(19), 7953-7963 (2011-08-27)
Exposure of cells to phenolic compounds through exogenous and endogenous sources can lead to deleterious effects via nucleobase modifications of DNA occurring under oxidative conditions. 2'-Deoxyguanosine (dG) is the most electron rich of the four canonical bases and includes many...
Onur Erdem et al.
International archives of occupational and environmental health, 85(4), 353-361 (2011-07-15)
Jet fuel is a common occupational exposure risk among military and civilian populations. The purpose of this study was to evaluate genotoxic and oxidative effects in workers occupational exposure to jet propulsion fuel (JP-8). In this study, sister-chromatid exchange (SCE)...
Kiyoshi Yamauchi et al.
Genes & genetic systems, 94(5), 207-217 (2019-11-22)
The cytosolic sulfotransferase 1 (SULT1) proteins are a family of highly divergent proteins that show variable expansion in different species during vertebrate evolution. To clarify the evolutionary origin of the mammalian lineage of the SULT1 family, we compiled Xenopus laevis...
Antonio Rizzo et al.
The Journal of chemical physics, 134(24), 244109-244109 (2011-07-05)
A computational approach to the calculation of excited state electronic circular dichroism (ESECD) spectra of chiral molecules is discussed. Frequency dependent quadratic response theory is employed to compute the rotatory strength for transitions between excited electronic states, by employing both...
Erin E Podlesny et al.
Organic letters, 14(6), 1408-1411 (2012-03-01)
The first enantioselective total synthesis of the bisanthraquinone (S)-bisoranjidiol and an unnatural regioisomer has been accomplished. Key features of the synthesis include the asymmetric oxidative biaryl coupling of a hindered 8-substituted 2-naphthol, selective para-quinone formation, and regioselective tandem Diels-Alder/aromatization reactions.
Glenn Talaska et al.
Toxicology letters, 213(1), 45-48 (2011-05-26)
Urinary bladder cancer is a historical disease of rubber workers often been associated with exposure to aromatic amines such as 2-naphthylamine. While exposure to these compounds has decreased markedly over time, the bladder cancer risk has not decreased in direct...
Sylvie Mavel et al.
Bioorganic & medicinal chemistry, 20(4), 1388-1395 (2012-02-04)
The dopamine transporter (DAT) plays a pivotal role in the regulation of dopamine neurotransmission, and is involved in a number of physiological functions and brain disorders. Furthermore the DAT analysis by molecular imaging techniques is a useful tool for the...
Minna Rahnasto et al.
Journal of medicinal chemistry, 48(2), 440-449 (2005-01-22)
The purpose of this study was to develop screening and in silico modeling methods to obtain accurate information on the active center of CYP2A6, a nicotine oxidizing enzyme. The inhibitory potencies of 26 naphthalene and 16 non-naphthalene derivatives were determined...
Hyun-Hee Lim et al.
Food chemistry, 138(2-3), 791-796 (2013-02-16)
This paper describes a gas chromatography-mass spectrometric method of l-hydroxypyrene (1-HOP) and 2-naphthol (2-NAP) in fish and shellfish. Alkali hydrolysis method in this study was chosen and optimized to the reaction condition for 90 min at 90°C in a 2.0M...
Shouning Chai et al.
Environmental science & technology, 46(18), 10182-10190 (2012-08-28)
With in situ molecular imprinting technique, a novel nanoelectrode (MI, n-P)-TiO(2) with n-P heterojunction and molecular recognition ability was fabricated by liquid phase deposition at low temperature. Using bisphenol A (BPA) as template, the spindle-like TiO(2) particles 40-80 nm in...
Kunal Roy et al.
European journal of medicinal chemistry, 44(5), 1941-1951 (2008-12-27)
A series of naphthalene and non-naphthalene derivatives (n=42) having cytochrome P450 2A6 and 2A5 inhibitory activities, reported by Rahnasto et al., were subjected to QSAR and QAAR studies. The analyses were performed using electronic, spatial, shape and thermodynamic descriptors to...
Hueiwang Anna Jeng et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 46(8), 865-873 (2011-07-01)
A repeated measurement cohort study was conducted to determine whether 2-napthol can be a suitable biomarker for evaluating the magnitude of exposure to PAHs from coke oven emissions. Time-course patterns of urinary 2-naphthol levels in coke-oven workers were examined. Also...
Ahmad Aqel et al.
Journal of chromatographic science, 52(3), 201-210 (2013-02-21)
This paper describes the comprehensive fabrication of monolithic materials for use as stationary phases in capillary liquid chromatography. Several columns were synthesized in the confines of 320 µm i.d. fused-silica capillaries by single-step in situ copolymerization of benzyl methacrylate and...
Anodic oxidation of 2-naphthol at boron-doped diamond electrodes.
Panizza M, et al.
Journal of Electroanalytical Chemistry, 507(1), 206-214 (2001)
Claire Tacon et al.
Bioorganic & medicinal chemistry, 20(2), 893-902 (2011-12-27)
Herein we report on the semisynthesis and biological evaluation of β-amino alcohol derivatives of the natural product totarol and other simple aromatic systems. All β-amino alcohol derivatives of totarol exhibited higher antiplasmodial activity than totarol [IC(50): 11.69 μM (K1, chloroquine...

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