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山东科技大学实验化学课件 the Kinetics of Oxidation of Formic Acid
山东科技大学 实验化学 课件 the Kinetics of Oxidation of Formic Acid
2018/12/20
山东科技大学实验化学课件 the Kinetics of Oxidation of Formic Acid。
云南师范大学化学化工学院有机化学课件Chapter15 Carboxylic acid derivatives
云南师范大学化学化工学院 有机化学 课件 Chapter15 Carboxylic acid derivatives
2018/6/28
云南师范大学化学化工学院有机化学课件Chapter15 Carboxylic acid derivatives。
An empirical approach to the nucleation of sulfuric acid droplets in the atmosphere
nucleation Gibbs energy aerosol microphysics
2015/9/16
We use quantum mechanical evaluations of the Gibbs free energy of the hydrates of sulfuric acid, H2SO4. nH2O and (H2SO4)2
. nH2O to evaluate an empirical surface tension for sulfuric acid-water clust...
Chemical, stoichiometric and thermal analysis of fatty acid methyl esters from processed animal fat
biofuel rendering plant fat transesterification net calorific value emissions
2014/2/24
The paper focuses on liquid biofuel raised by transesterification of processed animal fat from rendering plant production suitable for energy use. The objective of the paper is to carry out an element...
Theoretical Study on Raman Spectra of Aqueous Peroxynitric Acid
Aqueous peroxynitric acid Raman Theoretical study
2012/4/5
Using density functional theory and polarizable continuum models, we study the Raman spectra of aqueous peroxynitric acid. The calculated results indicate that the solvent effect has significant influ...
Reactions of 4-benzoyl-1,5-diphenyl-1H-pyrazole-3- carboxylic acid chloride with various hydroxylamines and carbazates
Pyrazole-3-carboxylic acid nucleophilic substitution furan-2,3-dione
2010/12/29
The 1H-pyrazole-3-carboxylic acid 2 was converted via reactions of its acid chloride 3 with various hydroxylamine 4a-f and carbazate derivatives 8a-c into the corresponding novel N-substituted-4-benzo...
Reactions of 4-benzoyl-1,5-diphenyl-1H-pyrazole-3- carboxylic acid chloride with various hydroxylamines and carbazates
Pyrazole-3-carboxylic acid nucleophilic substitution furan-2,3-dione carbazate hydroxylamine
2010/12/20
The 1H-pyrazole-3-carboxylic acid 2 was converted via reactions of its acid chloride 3 with various hydroxylamine 4a-f and carbazate derivatives 8a-c into the corresponding novel N-substituted-4-benzo...
Sulfonic acid-functionalized silica: a remarkably efficient heterogeneous reusable catalyst for the one-pot synthesis of 1,4-dihydropyridines
1,4-Dihydropyridine b-dicarbonyl compounds solid acid SiO2-R-SO3H
2010/10/19
An efficient one-pot method for the synthesis of 1,4-dihydropyridines from b-dicarbonyl compounds, aldehyde, and ammonium acetate is reported using sulfonic acid-functionalized silica at 90 °C under s...
A simple and efficient procedure for synthesis of optically active 1,3,4-oxadiazole derivatives containing L-amino acid moieties
N-phetaloyl-L-amino acid 1,3,4-oxadiazole diacylhydrazide pyridoyl hydrazide
2010/10/19
Some new unsymmetrical and optically active 2,5-disubstituted 1,3,4-oxadiazoles 5a-j were efficiently synthesized by cyclization reaction of diacylhydrazides 4a-j. The synthesis of the title compounds...
Silica supported polyphosphoric acid (PPA-SiO2): an efficient and reusable heterogeneous catalyst for the one-pot synthesis of a -amino phosphonates
a -Amino phosphonates PPA-SiO2 heterogeneous catalyst
2010/10/19
An efficient green protocol is described for the preparation of a -amino phosphonates, employing a one-pot three-component condensation reaction between aldehydes, amines, and trialkyl phosphites in t...
Traceable Amino Acid Analyses of Proteins and Peptides by Isotope-Dilution Mass Spectrometry Using Precolumn Derivatization Reagent
Traceable Amino Acid Analyses Proteins and Peptides Isotope-Dilution Mass Spectrometry
2010/9/17
We have developed an accurate and traceable quantitation method of proteins and peptides by isotope-dilution mass spectrometry with the precolumn derivatization for hydrolyzed amino acid. This method ...
Electrooxidation of hydrazine by carminic acid as a mediator on a glassy carbon electrode
Hydrazine glassy carbon electrode mediator
2010/10/15
Electrocatalytic oxidation of hydrazine on a glassy carbon electrode with carminic acid as a homogeneous mediator in 0.1 M phosphate buffer solution (pH 8.0) was studied. Cyclic voltammetry study show...
Synthesis, Characterization and Biological Applications of Organotin(IV) Derivatives of 2-(2-Fluoro-4-biphenyl)propanoic Acid
Synthesis Characterization Biological 2-(2-Fluoro-4-biphenyl)propanoic Acid
2010/4/21
A series of organotin(IV) derivatives with the general formula R4 - nSnLn (where n = 1 or 2, R = Me, Et, n-Bu, Ph and L = 2-(2-fluoro-4-biphenyl)propanoate) have been synthesized and characterized by ...
Visualization of Spatial Distribution of γ-Aminobutyric Acid in Eggplant (Solanum melongena) by Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry
Visualization Spatial Distribution γ-Aminobutyric Acid
2010/9/14
We applied imaging mass spectrometry (IMS) to determine the spatial distribution of γ-aminobutyric acid (GABA). We found that GABA had a specific localization in seeds. We also visualized various biom...
Voltammetric Determination of Ferulic Acid by Didodecyldimethylammonium Bromide/Nafion Composite Film-modified Carbon Paste Electrode
Voltammetric Determination Ferulic Acid Didodecyldimethylammonium Bromide
2010/9/15
A simple and rapid method for the determination of ferulic acid in pharmaceutical formulations by didodecyldimethylammonium bromide (DDAB)/Nafion composite film-modified carbon paste electrode is pres...