A gas chromatography-mass spectrometry (GC-MS) method was developed for the simultaneous determination of quinoline, pyridine, and crotonaldehyde in footwear materials.
Yuhong TANG +4 more
doaj +1 more source
A diamine monomer, 4,4’-bis(5-amino-2-pyridinoxy)benzophenone, was designed and synthesized, and used to react with commercially different kinds of aromatic dianhydrides to prepare a series of polyimides containing pyridine and ketone units via the ...
Chunbo Wang +5 more
doaj +1 more source
N′-[(1E)-4-Hydroxy-3-methoxybenzylidene]isonicotinohydrazide monohydrate
In the title hydrate, C14H13N3O3·H2O, the dihedral angle between the pyridine and benzene rings is 2.52 (9)°. Intramolecular O—H...O hydrogen bonds occur.
K. R. Roopashree +4 more
doaj +1 more source
Scientific Opinion on Flavouring Group Evaluation 77, Revision 2 (FGE.77Rev2): Consideration of Pyridine, Pyrrole and Quinoline Derivatives evaluated by JECFA (63rd meeting) structurally related to Pyridine, Pyrrole, Indole and Quinoline Derivatives evaluated by EFSA in FGE.24Rev2 (2013) [PDF]
The Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids of the European Food Safety Authority was requested to consider evaluations of flavouring substances assessed since 2000 by the Joint FAO/WHO Expert Committee on Food Additives
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)
doaj +1 more source
Discovering the stacking landscape of a pyridine-pyridine system [PDF]
Extremely extensive calculations of potential energy surfaces for the parallel-displaced configuration of pyridine dimer systems have been carried out using a dispersion-corrected density functional. Instead of focusing on stationary geometries these calculations provide much deeper insight into the "landscape" of the interaction energies of the ...
openaire +2 more sources
Variously substituted N-heterocyclic compounds are widespread across bio- and medicinal chemistry. The work aims to computationally evaluate the influence of the type of N-heterocyclic compound and the substitution position on the properties of three ...
Paweł A. Wieczorkiewicz +2 more
doaj +1 more source
COMPARATIVE SOLUBILITIES IN WATER, IN PYRIDINE AND IN AQUEOUS PYRIDINE. [PDF]
n ...
openaire +1 more source
3-Position-Selective C–H Trifluoromethylation of Pyridine Rings Based on Nucleophilic Activation [PDF]
The first example of the 3-position-selective C(sp2)–H trifluoromethylation of pyridine rings was established. 3-Position-selective trifluoromethylation was achieved by the nucleophilic activation of pyridine and quinoline derivatives through ...
Yoichiro, Kuninobu +2 more
core +2 more sources
Modeling of adsorption isotherms and competitive adsorption breakthroughs of Nicotine/Pyridine removal from aqueous solution by activated Montmorillonite [PDF]
Activated Montmorillonite (AM) reveals as a low-cost and efficient adsorbent for the adsorption of nicotine and pyridine from aqueous solutions. In this study, the influence of several operation conditions (initial compounds concentration, volumetric ...
Zeinab Ibrahim +7 more
doaj +1 more source
Pyridine-Derived Oxazolidines as Chiral 3-Alkyl-4,5-dihydropyridinium and 3-Alkyl-3,4,5,6-tetrahydropyridinium Salt ...
Bhupesh C. Das (3004164) +5 more
core +1 more source

