Novel heterocyclic systems. Synthesis of 2,7-dimethyl-10-oxa-1,8-diaza-anthracen-9-one and derivatives
✍ Scribed by Dimitar B. Gotchev; Daniel L. Comins
- Book ID
- 108282797
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- French
- Weight
- 264 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0040-4020
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## Abstract magnified image 8‐Oxa‐__4b__,7‐diaza‐benzo[__a__]azulene‐9‐one system, a new tricyclic heterocyclic framework is designed through a simple and convenient synthetic sequence. Its 6‐aryl derivatives are synthesized starting from ethyl indole‐2‐carboxylate. Reaction of differently substit
## Abstract The preparation of a variety of derivatives of 2‐oxa‐1,3,4,10‐tetraazacyclopenta[__b__]fluoren‐9‐one 1 is described. A series of substituted indan‐1‐ones were prepared and oxidized with __N__‐bromosuccinimide and dimethyl sulfoxide to the corresponding ninhydrin derivatives. Cyclization