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Formation of n-α-diazoacetylureas by the reaction of derivatives of 5-hydroxy-1,2,3-triazole-4-carboxamide with phenylisocyanate and phenyl isothiocyanate

✍ Scribed by V. E. Akat'ev; V. A. Bakulev; V. S. Mokrushin; A. T. Lebedev


Publisher
Springer US
Year
1992
Tongue
English
Weight
268 KB
Volume
28
Category
Article
ISSN
0009-3122

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✍ María I. García Trimiño; Arturo Macías Hermán Vélez Cabrera Castro; Arístides Ro 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 German ⚖ 594 KB

The redction of N,N -dimethyl-2-nitroethene-I,l-diamine (8) with cc,j-unsaturdted dcyl ISOthiOCydndteS 9 dffords 3,3-diamino-2-nitroacrylthioamides 10 (Scheme 2) in moderate-to-good yields Cyclization of 10 under acidic conditions gives 1,3-thiazin-4-one derivatives of type 11 Oxiddtive cyclization