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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/12/16 00:58:40」(JST)

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3-pyrazolone

5-pyrazolone

Phenazone

Ampyrone

Pyrazolone, a five-membered-ring lactam, is a derivative of pyrazole that has an additional keto (=O) group. It has a molecular formula of C₃H₄N₂O. There are two possible isomers: 3-pyrazolone and 5-pyrazolone.

Examples of derivatives include:

Ampyrone, a pharmaceutical
Metamizole, a pharmaceutical used as a analgesic, antispasmodic, antipyretic
Phenazone, a pharmaceutical used as a analgesic and antipyretic
Pigment Yellow 10, a yellow colorant
phenidone, a dihydropyrazolone

External links

Pyrazolones at the US National Library of Medicine Medical Subject Headings (MeSH)
Pubchem - 3-Pyrazolone
Pubchem - 5-Pyrazolone

This article about a heterocyclic compound is a stub. You can help Wikipedia by expanding it.

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English Journal

A comparative study of experimental and theoretical results of conformations of oxovanadium(IV) complexes with 4-acyl pyrazolone ligands using DFT method.

Parihar S1, Gupta SK2, Jadeja RN3, Jha PK4.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.Spectrochim Acta A Mol Biomol Spectrosc.2014 Jul 15;128:447-51. doi: 10.1016/j.saa.2014.02.138. Epub 2014 Mar 12.
The optimized structures and electronic properties of the oxovanadium(IV) complexes containing 4-acyl pyrazolone ligands were calculated using density functional theory. The total energies of both the complexes were calculated e.g. syn and anti conformation of complex 1 and complex 2 with and withou
PMID 24682060

Fast carbohydrate analysis via liquid chromatography coupled with ultra violet and electrospray ionization ion trap detection in 96-well format.

Rühmann B1, Schmid J1, Sieber V2.
Journal of chromatography. A.J Chromatogr A.2014 Jul 11;1350:44-50. doi: 10.1016/j.chroma.2014.05.014. Epub 2014 May 14.
A fast carbohydrate screening platform processible in 96-well format is described. The method is suitable for the determination of various carbohydrates out of complex mixtures as obtained by acidic hydrolysis of carbohydrates polymers. The chromatographic conditions for an efficient separation (12m
PMID 24861788

A green four-component synthesis of zwitterionic alkyl/benzyl pyrazolyl barbiturates and their photophysical studies.

Bihani M1, Bora PP, Bez G, Askari H.
Molecular diversity.Mol Divers.2014 Jul 9. [Epub ahead of print]
A novel series of unsymmetrically substituted alkyl/benzyl pyrazolyl barbiturates incorporating highly biologically active pyrazolone and barbiturate moieties was synthesized by four-component reactions of a mixture of ethyl acetoacetate, hydrazine hydrate, aldehydes and barbituric acid/thiobarbitur
PMID 25005075