Preparation of potentially bioactive aza and thiaza polycyclic compounds containing a bridgehead nitrogen atom. Synthesis of pyrrolo[1,2,3-de]-1,4-benzothiazine derivatives
✍ Scribed by Domenico Armenise; Giuseppe Trapani; Vittorio Arrivo; Flaviano Morlacchi
- Book ID
- 112129738
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1990
- Tongue
- English
- Weight
- 375 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-152X
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📜 SIMILAR VOLUMES
## Abstract Cyclization reactions of __N__‐(2,2‐dialkoxyethyl)‐1,4‐benzothiazine lactams 2 and 1,4‐benzothiazine‐sulfones 10 lead to the corresponding pyrrolo[1,2,3‐__de__]‐1,4‐benzothiazines 4 and 12, respectively, by using the dioxane/__p__‐toluenesulfonic acid or polyphosphoric acid/chloroform s
## Abstract Diaminomethylenehydrazones of cyclic ketones 1–5 reacted with ethyl __N__‐cyanoimidate (I) at room temperature or with bis(methylthio)methylenecyanamide (II) under brief heating to give directly the corresponding spiro[cycloalkane[1′,2′,4′]triazolo[1′,5′,‐__a__][1′,3′‐5′]triazine] deriv
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