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Photochemistry of 4-hydroxy-6-methyl-(2H)-pyran-2-one (triacetic acid lactone)

✍ Scribed by Bedford, C. T.; Money, T.


Book ID
121286234
Publisher
Royal Society of Chemistry
Year
1969
Weight
275 KB
Volume
13
Category
Article
ISSN
0577-6171

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Synthesis of bipyrazoles and pyrazoloiso
✍ Abderrahman Bendaas; Maâmar Hamdi; Nicole Sellier 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 249 KB

## Abstract Phenylhydrazine or hydrazine react with 3‐acetyl‐4‐hydroxy‐6‐methyl‐2__H__‐pyran‐2‐one (1) to give 4‐acetoacetyl‐3‐methylpyrazolin‐5‐ones 4. The synthesis of bipyrazoles and pyrazoloisoxazoles from 4 are reported.