Untersuchungen über 3-Pyrazolone. Ueber die p- und o-1-Tolyl-5-methyl-3-pyrazolone
نویسندگان
چکیده
منابع مشابه
Bioassay of 1-phenyl-3-methyl-5-pyrazolone for possible carcinogenicity.
A bioassay of 1-phenyl-3-methyl-5-pyrazolone for possible carcinogenicity was conducted using Fischer 344 rats and B6C3F1 mice. 1-Phenyl-3-methyl-5-pyrazolone was administered in the feed, at either of two concentrations, to groups of 49 or 50 male and 50 female animals of each species. The high and low concentrations of 1-phenyl-3-methyl-5-pyrazolone utilized were, respectively, 5,000 and 2,50...
متن کاملSynthesis and Study of Analgesic, Anti-inflammatory Activities of 3-methyl-5- Pyrazolone Derivatives
Considerable amount of research has been carried out in the field of pyrazolone derivatives due to their diverse biological, pharmacological and chemical properties. The need was felt to synthesize certain 3-methyl-5-pyrazolone derivatives with potent analgesic and anti-inflammatory activity and with lesser side effects as it had been proved of late that the beneficial effects of pyrazolones ou...
متن کاملStructures of l-Phenyl-3-methyl-pyrazolone-5 and its Benzoyl Derivatives+
The structures of l-phenyl-3-methyl-pyrazolone-5 and its benzoyl derivatives have been investigated by means of IR, UV, NMR, and mass spectral spectroscopy. 1-Phenyl 3-methyl-pyrazolone-5 is found to exist as a zwitter ion in the solid state, in the 5-keto form in chloroform and dioxane, and in the 5-hydroxy form in pyridine. The 4-benzoyl derivative of l-phenyl-3-methyl-pyrazolone-5 is shown t...
متن کاملSynergistic Solvent Extraction of Trivalent Lanthanoids with Mixtures of 1-Phenyl-3-methyl-4-benzoyl-5- pyrazolone and Crown Ethers
The synergistic solvent extraction of 14 trivalent lanthanoids (except Pm) with 1-phenyl-3-methyl-4-benzoyl-5pyrazolone(HP) and dibenzo-18-crown-6 (DB18C6) or dibenzo-24-crown-8(DB24C8) in 1, 2-dichloroethane has been studied. It was found that in the presence of HP alone the lanthanoids have been extracted as LnP3∙HP and in the presence of mixtures of HP and crown ethers (S) − as LnP3∙S. On th...
متن کاملEin Beitrag zu den Untersuchungen über die
[Aus dem neunten Bande der Abhandlungen der Königlichen Gesellschaft der Wissenschaften zu Göttingen. 1861.]
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ژورنال
عنوان ژورنال: Justus Liebig's Annalen der Chemie
سال: 1904
ISSN: 0075-4617,1099-0690
DOI: 10.1002/jlac.19043380305