## Abstract A facile procedure for preparing 4‐fluoroantipyrine is reported. Treatment of antipyrine with molecular fluorine gives 4‐fluoroantipyrine (3) and 4,4‐difluoro‐3‐hydroxy‐2,3‐dimethyl‐1‐phenylpyrazolidin‐5‐one (2). The product distribution depends on the ratio of antipyrine and molecular
✦ LIBER ✦
Synthesis and study of the biological properties of fluorinated derivatives of 1-phenyl-3-methylpyrazol-5-one. Analogs of antipyrine with heteroatomic fluorinecontaining substituents
✍ Scribed by E. S. Éndel'man; A. G. Fadeicheva; Yu. A. Fialkov; V. S. Danilenko; F. P. Trinus; K. A. Chernoshtan; L. M. Yagupol'skii
- Book ID
- 112397642
- Publisher
- Springer
- Year
- 1976
- Tongue
- English
- Weight
- 359 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0091-150X
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