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Synthesis of substituted imidazo[1,2-b]-1,2,4-triazolo[4,3-d]-1,2,4-triazepine and 4H-imidazo[1,2-b]-1,2,4-triazino[4,3-d]-1,2,4-triazepin-7-one

✍ Scribed by V. P. Kruglenko; M. V. Povstyanoi; N. A. Klyuev; V. A. Idzikovskii

Publisher
Springer US
Year
1997
Tongue
English
Weight
75 KB
Volume
33
Category
Article
ISSN
0009-3122

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## Abstract The reaction of N‐aryl‐C‐ethoxycarbonyl nitrilimines with [1,2,4]triazepin‐3,5‐dithione leads to title compounds. The 1,3‐dipolar cycloaddition is completely peri and regioselective. The preferred orientation of addition is predicted correctly by AM~1~ calculation.