Indolization of 1-Aryl-4-oxo-4,5,6,7-tetrahydroindazoles According to Fisher. -The Fisher indolization of the title indazoles (I) is used as a synthetic way to the pyrazolo[4,5-c]carbazoles (III). The pyrazolocarbazole (IIIb) can also be obtained by reaction of the 2-acetyldimedone (IV) with an exc
✦ LIBER ✦
Fischer indolization of 1-aryl-4-oxo-4,5,6,7-tetrahydroindazoles
✍ Scribed by I. A. Strakova; A. Ya. Strakov; M. V. Petrova
- Publisher
- Springer US
- Year
- 1997
- Tongue
- English
- Weight
- 91 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0009-3122
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## Abstract Ausgehend von den leicht zugänglichen 4‐Oxo‐4.5.6.7‐tetrahydro‐cumaronen und den 4‐Oxo‐1.2.3.4.5.6.7.8‐octahydro‐dibenzofuranen wurden durch Umsetzung mit Ammoniak und primären Aminen die entsprechenden Derivate der Tetrahydroindol‐ und Octahydrocarbazol‐Reihe erhalten.