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The synthesis of 5-substituted 3-benzoylamino-6-(2-substituted amino-1-ethenyl)-2H-pyran-2-ones and their transformations into 2H-pyrano[3,2-c]pyridine derivatives

✍ Scribed by Sonja Strah; Jurij Svete; Branko Stanovnik


Book ID
112131535
Publisher
Journal of Heterocyclic Chemistry
Year
1996
Tongue
English
Weight
452 KB
Volume
33
Category
Article
ISSN
0022-152X

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Synthesis of substituted 3-(5-amino-[1,3
✍ Irina O. Zhuravel'; Valentin P. Chernykh; Pavlo E. Shinkarenko; Sergiy M. Kovale πŸ“‚ Article πŸ“… 2004 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 222 KB πŸ‘ 1 views

## Abstract An efficient two‐step synthesis of novel 3‐(5‐amino‐[1,3,4]thiadiazol‐2‐yl)‐2__H__‐pyrano[2,3‐__c__]pyridine‐2‐ones was developed. In the first step, a new 2__H__‐pyrano[2,3‐__c__]pyridine‐3‐carboxamide **5** was prepared by Knoevenagel condensation of pyridoxal hydrochloride with cyano