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Synthesis of aldehyde and carboxylic acid derivatives from 2-hydroxymethyl-3-hydroxy-4H-pyran-4-one (α-hydroxymaltol)

✍ Scribed by James H. Looker; Michael D. Cliffton

Book ID
112128128
Publisher
Journal of Heterocyclic Chemistry
Year
1986
Tongue
English
Weight
252 KB
Volume
23
Category
Article
ISSN
0022-152X

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Synthesis of bipyrazoles and pyrazoloiso
Synthesis of bipyrazoles and pyrazoloisoxazoles from 3-acetyl-4-hydroxy-6-methyl-2H-pyran-2-one
✍ 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.