|应用||An aromatic compound used in the detection of aldehydes or ketones in oils.|
|标识符号||GHS06, GHS08, GHS09|
Concise synthesis of (+/-)-horsfiline and (+/-)-coerulescine by tandem cyclisation of iodoaryl alkenyl azides.
A brief, efficient and economical synthesis of the spiropyrrolidinyloxindoles, horsfiline and coerulescine, has been achieved, starting from itaconic acid and, respectively, p-anisidine or o-iodoanili...Read More
Differential patterns of constitutive intracellular laccases of the vegetative phase of Pleurotus species.
The constitutive intracellular laccase activity of ten strains of Pleurotus spp. was determined in vitro and by zymograms, using different substrates. Differences in the in vitro activities were obser...Read More
[Determination of seven aromatic amines in hair dyes by capillary electrophoresis coupled with field-amplified sample stacking].
A method for the determination of 4,4'-methylenedianiline, aniline, o-anisidine, 3, 4-dimethylaniline, p-anisidine, 3-aminophenol, 1-naphthylamine in hair dyes was established by capillary electr...Read More
Synthesis and evaluation of changes induced by solvent and substituent in electronic absorption spectra of some azo disperse dyes.
Five azo disperse dyes were prepared by diazotizing 4'-aminoacetophenone and p-anisidine and coupling with varies N-alkylated aromatic amines. Characterization of the dyes was carried out by usin...Read More
Mechanism of peptide hydrolysis by co-catalytic metal centers containing leucine aminopeptidase enzyme: a DFT approach.
In this density functional theory study, reaction mechanisms of a co-catalytic binuclear metal center (Zn1-Zn2) containing enzyme leucine aminopeptidase for two different metal bridging nucleophiles (...Read More
Effect of storage on chemical and sensory profiles of peanut pastes prepared with high-oleic and normal peanuts.
Peanut paste and peanut butter have high oil contents and are thus susceptible to developing rancidity and off-flavours through lipid oxidation. Preservation of the chemical and sensory quality of the...Read More
In the structure of the complex of dibenzo-18-crown-6 [systematic name: 2,5,8,15,18,21-hexaoxatricyclo[184.108.40.206(9,14)]hexacosa-1(26),9,11,13,22,24-hexaene] with 4-methoxyanilinium tetrafluoroborate, C...Read More
Comparing antioxidant effectiveness of natural and synthetic free radical scavengers in thermally-oxidized lard using DPPH method.
Antioxidant effectiveness of free radical scavengers (FRSs) of alpha-tocopherol, sesamol, butylated hydroxytoluene (BHT), and tert-butylhydroquinone (TBHQ) were evaluated in thermally-oxidized lard us...Read More
An efficient and convenient synthesis of ethyl 1-(4-methoxyphenyl)-5-phenyl-1H-1,2,3-triazole-4-carboxylate.
The "click chemistry" of using organic azides and terminal alkynes is arguably the most efficient and straightforward route to the synthesis of 1,2,3-triazoles. In this paper, an alternative...Read More
Extending the frying-life of oils is of commercial and economic importance. Due to this fact, assessment on the thermal stability of frying oils could provide considerable savings to the food processo...Read More
We're sorry this abstract is currently not available....Read More
This protocol describes a procedure for the synthesis of syn-beta-amino alpha-substituted aldehydes, versatile intermediates in synthetic organic chemistry, via asymmetric, direct, one-pot, three-comp...Read More
Direct asymmetric three-component organocatalytic anti-selective Mannich reactions in a purely aqueous system.
The direct three-component Mannich reactions of O-benzyl hydroxyacetone with p-anisidine and aromatic or aliphatic aldehydes in the presence of an L-threonine-derived catalyst afforded anti-1,2-amino ...Read More
The results of five coded compounds: genistein, metaproterenol, rotenone, p-anisidine and resorcinol tested in the pH 6.7 Syrian hamster embryo cell morphological transformation assay.
The pH 6.7 Syrian hamster embryo (SHE) cell morphological transformation assay is a short-term in vitro test that has been used to predict rodent carcinogenicity. Previous reports have indicated that ...Read More
cDNA microarray gene expression profiling of hydroxyurea, paclitaxel, and p-anisidine, genotoxic compounds with differing tumorigenicity results.
The potential application of toxicogenomics to predictive toxicology has been discussed widely, but the utility of the approach remains largely unproven. Using cDNA microarrays, we compared the gene e...Read More
Structure-activity relationships of several anisidine and dibenzanthracene isomers in the w/w+ somatic assay of Drosophila melanogaster.
Several structurally related anisidine and dibenzanthracene isomers were evaluated for genotoxic effects in the somatic w/w+ assay of Drosophila melanogaster employing insecticide-susceptible (IS) and...Read More
Enantioselective aminolysis of an alpha-chloroester catalyzed by Candida cylindracea lipase encapsulated in sol-gel silica glass.
[reaction: see text] Lipase from Candida cylindracea (CcL) encapsulated in porous silica glass by a sol-gel method catalyzes enantioselective aminolysis of ethyl 2-chloropropionate. A silica matrix en...Read More
Esterified propoxylated glycerol soyate, a fat substitute model compound, and soy oil after heating.
The changes occurring in two oil samples [EPG-00 soyate (transesterified soybean oil) and soy oil esterified propoxylated glycerol (EPG-08 soyate, a model, fat substitute compound)] were compared afte...Read More
Sensitivity "hot spots" in the direct analysis in real time mass spectrometry of nerve agent simulants.
Presented here are findings describing the spatial-dependence of sensitivity and ion suppression effects observed with direct analysis in real time (DART). Continuous liquid infusion of dimethyl methy...Read More
An experimental investigation was carried out to evaluate the influence of processing and storage time on the lipidic fraction of taralli. The data obtained pointed out that the kneading phase caused ...Read More
Small-molecule aggregation inhibitors reduce excess amyloid in a trisomy 16 mouse cortical cell line.
We have previously characterized a number of small molecule organic compounds that prevent the aggregation of the beta-amyloid peptide and its neurotoxicity in hippocampal neuronal cultures. We have n...Read More
We're sorry this abstract is currently not available....Read More
The modification of guanine nucleosides and nucleotides by the borderline arylamine carcinogens 4-methyl- and 4-methoxyaniline: chemistry and structural characterization.
We report here on the conformational analysis of C8-arylamine nucleoside and nucleotide adducts of the borderline carcinogens 4-methylaniline and 4-methoxyaniline. The non-phosphorylated adducts show ...Read More
Aryl H-phosphonates 17: (N-aryl)phosphoramidates of pyrimidine nucleoside analogues and their synthesis, selected properties, and anti-HIV activity.
New synthetic protocol for the preparation of nucleoside 5'-(N-aryl)phosphoramidate monoesters 4 was developed. It consisted of a condensation of the corresponding nucleoside 5'-H-phosphonat...Read More