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Synthesis of new spirobenzazolines including a furo[3,4-b]pyran ring system

✍ Scribed by P. Coudert; J. M. Couquelet; P. Tronche


Book ID
112128378
Publisher
Journal of Heterocyclic Chemistry
Year
1986
Tongue
English
Weight
169 KB
Volume
23
Category
Article
ISSN
0022-152X

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A novel one-step synthesis of 4H-furo[3,
✍ Martín, Nazario ;Segura, José L. ;Seoane, Carlos ;Soto, José L. ;Morales, Margar 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 293 KB 👁 1 views

## Abstract A simple one‐step synthesis of 2‐amino‐4‐aryl‐5‐oxo‐4__H__‐furo[3,4‐__b__]pyran‐3‐carbonitriles 7 is described. It involves reaction of 2,4(3__H__,5__H__)‐furandione (β‐tetronic acid) (5) with arylmethylenemalononitriles 4 in basic medium. Some substituent effects are noted and the assi