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Reaction of 6-cyano-1,2,4-triazolo[1,5-a]pyrimidin-5(8H)-one with phosphorus oxychloride in the presence of N,N-diethylaniline

✍ Scribed by S. Tumkyavichyus; Yu. Mitskene

Publisher
Springer US
Year
1991
Tongue
English
Weight
66 KB
Volume
27
Category
Article
ISSN
0009-3122

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## Abstract The reaction of the heterocyclic enamine **1** with tosyl azide (**2**) leads to the tosylimino derivative **4** of 1,2,4‐triazolo[1,5‐a]pyrimidine. The extrusion of nitrogen from the primary adduct **3** is followed by a 1,2‐shift of a methyl group. The structure determination of **4**