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Cycloaddition of 1-azirines to 1,2,4,5-tetrazines. Synthesis and rearrangement of 1,2,4-triazepines

โœ Scribed by Anderson, David J.; Hassner, Alfred

Book ID
120046402
Publisher
The Royal Society of Chemistry
Year
1974
Tongue
English
Weight
185 KB
Volume
2
Category
Article
ISSN
0022-4936

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## Abstract The reaction of Nโ€arylโ€Cโ€ethoxycarbonyl nitrilimines with [1,2,4]triazepinโ€3,5โ€dithione leads to title compounds. The 1,3โ€dipolar cycloaddition is completely peri and regioselective. The preferred orientation of addition is predicted correctly by AM~1~ calculation.