A New Facile Synthesis of 5-Alkyl-2-Aryl-3H-Pyrazol-3-Ones
- 1 August 1987
- journal article
- research article
- Published by Taylor & Francis in Synthetic Communications
- Vol. 17 (12) , 1519-1522
- https://doi.org/10.1080/00397918708057778
Abstract
The title compounds widely used in construction of pigments and antimaterials are most usually prepared by condensation of arylhydrazines and β-keto esters 1,2. Although a number of 5-methyl and aryl derivatives have been obtained, other 5-alkyl-3-pyrazolones are rarely mentioned in literature 3 because of the lack of a convenient method to prepare the approperate β-keto esters used in condensation.Keywords
This publication has 3 references indexed in Scilit:
- Amphoteric character of 1-phenyl-3-methylpyrazolin-5-onesCollection of Czechoslovak Chemical Communications, 1972
- Ethyl Acetoacetate 4-Nitrophenylhydrazone and 1-(4'-Nitrophenyl)-3-methylpyrazolone-5Journal of the American Chemical Society, 1948
- Preparation, Properties and Derivatives of α-Acetylenic Acids1Journal of the American Chemical Society, 1941