## Abstract 4‐Chloro‐3‐nitro‐2‐pyridines 3 and 10, obtained from 4‐hydroxy‐2‐pyridones **1** and **8** after nitration and chlorination, gave with sodium azide 4‐azido‐3‐nitropyridines **4** and **11**, which cyclized on thermolysis to furoxans **6** and **12**. Desoxygenation of the furoxan **6**
ChemInform Abstract: Organic Azides in Heterocyclic Synthesis. Part 26. Thermal Cyclization of 4-Azido-3-nitropyridines to Furoxanes.
✍ Scribed by Wolfgang Stadlbauer; Werner Fiala; Michaela Fischer; Gerhard Hojas
- Publisher
- John Wiley and Sons
- Year
- 2001
- Weight
- 31 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0931-7597
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