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Reaction of β-Cyano Esters with Hydrazine Hydrate. Unexpected Formation of Dipyrrolo[1,2-b:1′,2′-e][1,2,4,5]tetrazine, a Novel Ring System.

✍ Scribed by Krystyna Wejroch; Aneta Wesolowska; Maja Sadowska; Janina Karolak-Wojciechowska; Tadeusz Jagodzinski; Jerzy Lange


Publisher
John Wiley and Sons
Year
2005
Weight
19 KB
Volume
36
Category
Article
ISSN
0931-7597

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Reaction of β-cyano esters with hydrazin
✍ Krystyna Wejroch; Jerzy Lange; Aneta Wesołowska; Tadeusz Jagodzi Ski; Maja Sadow 📂 Article 📅 2005 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 130 KB

## Abstract Some intermediates and by‐products of the title reaction, known to yield 6‐hydrazinopyridazine‐3‐one derivatives, were isolated or detected when the amount of hydrazine hydrate used to react with two model β‐cyano esters was reduced to less than two equivalents. __N__'‐(1‐amino‐4‐hydraz