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*  Heterocyclic amine formation in meat
... pyridine (PhIP) in the rat". Mutation Research. 376: 107-114. doi:10.1016/S0027-5107(97)00032-8. PMID 9202745. Weisburger, John ...
*  Pyridyne
The methylthio and amino pyridines were found to be formed in the same ratio. In 1972 Kramer and Berry inferred the formation ... Pyridyne in chemistry is the pyridine analogue of benzyne. This reactive intermediate is of some importance to scientific ... Two isomers exist, the 2,3-pyridine (2,3-didehydropyridine) and the 3,4-pyridyne (3,4-didehydropyridine). The reaction of 3- ... of 3,4-pyridyne in gas-phase photolysis of pyridine-3-diazonium-4-carboxylate via time-of-flight mass spectrometry. The dimer ...
*  Pyridine
The pyridine ligand replaced during the reaction is restored after its completion. Useful adducts of pyridine include pyridine- ... The Kröhnke pyridine synthesis provides a fairly general method for generating substituted pyridines using pyridine itself as a ... "Pyridine". Encyclopædia Britannica Online. Lide, p. 3-448 Mootz, D. (1981). "Crystal structures of pyridine and pyridine ... pyridine. Pyridine is also used as a base in condensation reactions. Pyridine is used as a solvent in the manufacture of dyes ...
*  Pyridine alkaloids
"Pyridine Alkaloids". Cornell University, Department of Animal Science. Media related to Pyridine alkaloids at Wikimedia Commons ... Pyridine alkaloids are a class of alkaloids, nitrogen-containing chemical compounds widely found in plants, that contain a ... pyridine ring. Examples include nicotine and anabasine which are found in plants of the genus Nicotiana including tobacco. " ...
*  Chichibabin pyridine synthesis
The Chichibabin pyridine synthesis (/ˈtʃiːtʃiːˌbeɪbiːn/ CHEE-chee-bay-been) is a method for synthesizing pyridine rings. In its ... 5-trisubstituted pyridine ratios of a Chichibabin pyridine synthesis involving phenylacetaldehyde. They concluded with relative ... Alkyl-substituted pyridines show widespread uses among multiple fields of applied chemistry, including the polymer and ... An Improved Chichibabin Pyridine Synthesis". Journal of the American Chemical Society. 74 (1): 200-2. doi:10.1021/ja01121a051. ...
*  Pyridine-N-oxide
Pyridine N-oxide is five orders of magnitude less basic than pyridine, but it is isolable as a hydrochloride salt, [C5H5NOH]Cl ... The oxidation of pyridine can be achieved with a number of peracids including peracetic acid and perbenzoic acid in a reaction ... Pyridine-N-oxide is the heterocyclic compound with the formula C5H5NO. This colourless, hygroscopic solid is the product of the ... Scriven, E. F. V. (1984). "Pyridines and their Benzo Derivatives: (ii) Reactivity at Ring Atoms". In Katritzky, Alan R.; Rees, ...
*  Chloro(pyridine)cobaloxime
... (III) is first reduced to Chloro(pyridine)cobaloxime(I) by sodium borohydride in alkaline solution, ... CH3COO)Co(DH)2py + NaX → XCo(DH)2py + NaCH3COO (X = Br, I, CNO, CN, N3 or SCN) The pyridine base in the axial position can also ... Chloro(pyridine)cobaloxime is a yellow-brown powder that is sparingly soluble in most solvents, including water. The complex ... Chloro(pyridine)cobaloxime is a coordination compound containing a CoIII center with octahedral coordination. It has been ...
*  Pyridine N-methyltransferase
In enzymology, a pyridine N-methyltransferase (EC 2.1.1.87) is an enzyme that catalyzes the chemical reaction S-adenosyl-L- ... Damani LA, Shaker MS, Crooks PA, Godin CS, Nwosu C (1986). "N-methylation and quaternization of pyridine in vitro by rabbit ... The systematic name of this enzyme class is S-adenosyl-L-methionine:pyridine N-methyltransferase. This enzyme is also called ... the two substrates of this enzyme are S-adenosyl methionine and pyridine, whereas its two products are S-adenosylhomocysteine ...
*  Pyridine (data page)
This page provides supplementary chemical data on pyridine. The handling of this chemical may incur notable safety precautions ...
*  Boger pyridine synthesis
The Boger pyridine synthesis is a cycloaddition approach to the formation of pyridines named after its inventor Dale L. Boger, ... 4-triazine to form the pyridine nucleus. The reaction is especially useful for accessing pyridines that would be difficult or ... The initial adduct then expels nitrogen, and the pyridine is rearomatized with loss of the amine. Boger, Dale L.; Panek, James ... I. Thermal cycloaddition of 1,2,4-triazine with enamines: simple preparation of substituted pyridines". The Journal of Organic ...
*  Hantzsch pyridine synthesis
The Hantzsch pyridine synthesis or Hantzsch dihydropyridine synthesis is a multi-component organic reaction between an aldehyde ... The initial reaction product is a dihydropyridine which can be oxidized in a subsequent step to a pyridine. The driving force ... The Knoevenagel-Fries modification allows for the synthesis of unsymmetrical pyridine compounds. Hantzsch pyrrole synthesis ...
*  Kröhnke pyridine synthesis
Another use of the Kröhnke pyridine synthesis was the generation of a number of 2,4,6-trisubstituted pyridines that were ... Hantzsch pyridine synthesis Gattermann-Skita synthesis Chichibabin pyridine synthesis Ciamician-Dennstedt rearrangement ... β-unsaturated carbonyl compounds used to generate highly functionalized pyridines. Pyridines occur widely in natural and ... Ultimately, the Kröhnke pyridine synthesis offers a facile and straightforward approach to the synthesis of a wide breadth of ...
*  Pyridine nucleotide transhydrogenase
... may stand for NAD(P)+ transhydrogenase (Re/Si-specific) NAD(P)+ transhydrogenase (Si- ...
*  Sulfur trioxide pyridine complex
... is the compound with the formula C5H5NSO3. It is a colourless solid that dissolves in polar ... It is the adduct formed from the Lewis base pyridine and the Lewis acid sulfur trioxide. The compound is mainly used as a ... Thomas T. Tidwell "Sulfur Trioxide-Pyridine" Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons. doi: ...
*  3-Succinoylsemialdehyde-pyridine dehydrogenase
... (EC 1.2.1.83) is an enzyme with systematic name 4-oxo-4-(pyridin-3-yl)butanal: ... 3-succinoylsemialdehyde-pyridine dehydrogenase at the US National Library of Medicine Medical Subject Headings (MeSH) Molecular ...
*  Tetrakis(pyridine)silver(II) peroxydisulfate
When the pyridine ligands were removed, the transient square planar [Ag(H2O)4]2+ remains, which spontaneously oxidizes water to ... Tetrakis(pyridine)silver(II) peroxydisulfate is a chemical compound which contains silver in the rare oxidation state of +2. ... "Tetrakis(pyridine)silver(II) Peroxodisulfate, [Ag(py)4]S2O8, a Reagent for the Oxidative Transformations" Bull. Chem. Soc. Jpn ... Tetrakis(Pyridine)Silver(2+)Peroxydisulfate. John Wiley & Sons, Inc. pp. 177-181. doi:10.1002/9780470132630.ch30. ISBN ...
*  Flavoprotein pyridine nucleotide cytochrome reductases
... catalyse the interchange of reducing equivalents between one-electron ... A family of flavoprotein pyridine nucleotide cytochrome reductases". J. Biol. Chem. 266 (35): 23542-23547. PMID 1748631. ...
*  Bis(pyridine)iodonium(I) tetrafluoroborate
... or Barluenga's reagent named after J. Barluenga, is a mild iodinating reagent. ... Commercially available, it may be prepared by reacting iodine with pyridine in the presence of silver tetrafluoroborate ...
*  2-Methyl-6-(phenylethynyl)pyridine
... pyridine and (E)-2-methyl-6-(2-phenylethenyl)-pyridine reduce traumatic neuronal injury in vitro and in vivo by antagonizing N- ... 2-Methyl-6-(phenylethynyl)pyridine (MPEP) is a research drug which was one of the first compounds found to act as a selective ... Van Der Kam, EL; De Vry, J; Tzschentke, TM (2007). "Effect of 2-methyl-6-(phenylethynyl) pyridine on intravenous self- ... Van Der Kam, EL; De Vry, J; Tzschentke, TM (2009). "2-Methyl-6-(phenylethynyl)-pyridine (MPEP) potentiates ketamine and heroin ...
*  2-Amino-1-methyl-6-phenylimidazo(4,5-b)pyridine
PhIP (2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine) is one of the most abundant heterocyclic amines (HCAs) in cooked meat. ... a b International Agency for Research on Cancer (IARC) (1997) PhIP (2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine)(Group 2B ... 1995) High concentrations of the carcinogen 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) occur in chicken but are ... pyridine). Food and Chemical Toxicology. 48: S98-S105. Zheng, W. & Lee, S. (2009). Well-done meat intake, heterocyclic amine ...
*  Aromatization
Shimizu, S.; Watanabe, N.; Kataoka, T.; Shoji, T.; Abe, N.; Morishita, S.; Ichimura, H. (2005). "Pyridine and Pyridine ... followed by catalysed oxidation of dihydropyridine to pyridine. Hantzsch's approach to pyridines dates from 1881 and involves ... The difference can be seen in the basicity of the two systems, as pyridine can be easily protonated (its lone pair is available ... This can be seen in the pKa values of the respective conjugate acids - 8.25 for pyridine compared with −0.27 for pyrrole. In ...
*  2-Pyridone
Pyridine forms an N-oxide with some oxidation agents such as hydrogen peroxide. This pyridine-N-oxide undergoes a rearrangement ... however the yellow pigments often reported in degradation of many pyridine solvents, such as unsubstituted pyridine or picoline ... Pyridine diols undergo chemical transformation in solution to form intensely colored pigments. Similar pigments have been ... Leis D. G.; Curran B. C. (1945). "Electric Moments of Some Gamma-Substituted Pyridines". Journal of the American Chemical ...
*  2-Mercaptopyridine
Tautomeric pyridines. Part I. Pyrid-2- and -4-thione". Journal of the Chemical Society (Resumed): 3610. doi:10.1039/ ... This yellow crystalline solid is a derivative of pyridine. The compound and its derivatives serve primarily as acylating agents ... 2-Mercaptopyridine derivatives can also be generated from precursors lacking preformed pyridine rings. It arises for example in ...
*  Pyrithione
... pyridine-N-oxide and pyridine-2-thiol), both of which have pKa > 8. It is only slightly soluble in water (2.5 g L−1) but is ... Tautomeric pyridines. Part I. Pyrid-2- and −4-thione". J. Chem. Soc.: 3610-3613. doi:10.1039/JR9580003610. Jahn, Ullrich ( ... The tautomerism of mercapto- and acylamino-pyridine 1-oxides". J. Chem. Soc.: 2937-2942. doi:10.1039/JR9600002937. Ebrahimia, R ... Thomas, K.; Jerchel, D. (1964). "The Introduction of Substituents into the Pyridine Ring". In Foerst, Wilhelm; Birnbaum, Henry ...
*  Glicaramide
Pyrazolo[3,4-b]pyridines". Journal of Medicinal Chemistry. 16 (12): 1340-1346. doi:10.1021/jm00270a006. PMID 4358224. Progress ...