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Synthesis of 4-alkylpyrazoles from 3,5-diaminopyrazoles

✍ Scribed by Echevarr�a, Aurea; Elguero, Jos�; Yranzo, Gloria I.; Diez-Barra, Enrique; de la Hoz, Antonio; Moreno, Andr�s; Garc�a-Mart�n, Miguel Angel

Book ID
120011183
Publisher
Royal Society of Chemistry
Year
1993
Weight
528 KB
Volume
18
Category
Article
ISSN
1472-7781

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A facile synthesis of 3,5-diaminopyrazol
A facile synthesis of 3,5-diaminopyrazole-4-carbothioamides and 3,5-diaminopyrazole-4-carboxylates
✍ Maria Teresa Cocco; Cenzo Congiu; Valentina Onnis; Angela Maria Bernard; Pier Pa 📂 Article 📅 1999 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 336 KB

## Abstract Simple and convenient synthesis of hitherto unknown 3,5‐diaminopyrazole‐4‐carbothioamides 3 as well as new ethyl 3,5‐diaminopyrazole‐4‐carboxylates 7 is reported. The key intermediates were 2‐cyano‐propenethioamides 2 and 2‐(ethoxycarbonyl)propenethioamides 5 which were readily obtained