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Synthesis of 3,4,4-trinitro-δ1-pyrazolines

✍ Scribed by O. B. Kremleva; F. A. Gabitov; A. L. Fridman

Book ID
112327526
Publisher
Springer US
Year
1977
Tongue
English
Weight
71 KB
Volume
13
Category
Article
ISSN
0009-3122

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Synthesis of 3-aroyl-4-(3-chromonyl)-2-p
Synthesis of 3-aroyl-4-(3-chromonyl)-2-pyrazolines
✍ Albert Lévai; József Jekö 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 37 KB 👁 1 views

## Abstract New 3‐aroyl‐4‐(3‐chromonyl)‐2‐pyrazolines have been synthesized by the reaction of 3‐(3‐aryl‐3‐oxo‐propenyl)chromen‐4‐ones and diazomethane. Some of these 2‐pyrazolines have also been N‐acylated with a mixture of anhydrous pyridine and acetic anhydride or propionic anhydride. Structures