pyridine

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pyridine

 [pir´ĭ-dēn]
1. a toxic, colorless, liquid hydrocarbon usually derived from coal tar and used as a laboratory and industrial intermediate.

pyr·i·dine

(pir'i-dēn, -din),
A colorless volatile liquid of empyreumatic odor and burning taste, resulting from the dry distillation of organic matter containing nitrogen; used as an industrial solvent, in analytic chemistry, and for denaturing alcohol.

pyridine

(pĭr′ĭ-dēn′)
n.
A flammable, colorless or yellowish liquid base, C5H5N, having a penetrating odor and serving as the parent compound of many biologically important derivatives. It is used as a solvent and in the manufacture of various agricultural chemicals, rubber products, water repellents, dyes, and drugs.

py·rid′ic (pī-rĭd′ĭk) adj.
References in periodicals archive ?
We previously reported the synthesis of some novel disperse dyes based on substituted pyridines and their derivatives, oxazine, carbooxyanilide and thiocarbamate and evaluated their insecticidal and antifungal activity [18, 19].
The main nitrogen compounds identified were anilines, pyridine and quinoline compounds.
Khan, "Synthesis of fully-substituted pyridines and dihydropyridines in a highly chemo-selective manner utilizing a multicomponent reaction (MCR) strategy," RSC Advances, vol.
The asymmetric unit comprises one Co(II) atom, three pyridine molecules, one 3,5-dichlorosalicylaldehyde-2-amino-4-nitrophenol or 3,5-dibromosalicylaldehyde-2-amino-4-nitrophenol Shiff base, respectively.
Pyridine occurs in bone, low-temperature coal tars, pyrogenic oils, bituminous slate oil, and coffee oil.
In this study, we investigated three aminophosphonate derivatives of pyridine, including (diphenylphosphoryl) (pyridine-2-yl)methanol ([alpha]-Pyr), (diphenylphosphoryl) (pyridin-3-yl)methanol ([beta]-Pyr), and (diphenylphosphoryl) (pyridin-4-yl)methanol ([gamma]-Pyr) (Table 1 shows molecular structures of these compounds) using surface-enhanced Raman scattering (SERS) technique.
The magnetic moments of 1:1 complexes of bis(O-ethyldithiocarbonato)copper(II) with substituted pyridines fall in the range 1.81-1.94 B.M (Table 1) which is in agreement with magnetic moment values observed for distorted square pyramidal complexes of copper(II) [8-10].
Three new amino alkyl pyridine alkaloids, callyspongine A (1), B (2), and C (3) along with two known steroids, 24methylenecholesterol (4) and 24-methylcholesterol (5) were isolated.
The IR spectrum of the ligand has several bands appearing at 3448, 1472, and 1623 [cm.sup.-1] due to phenolic O-H group, pyridine C=N, and imine CH=N stretching vibrations in the solid state (see Figure S1 in Supplementary Material available online at http://dx.doi.org/10.1155/2014/104046).
At 12.28 ppm doublet is seen for proton attached to C adjacent to N of pyridine ring.