Three methods for converting the oxindole ring of 2a,3,4,5‐tetrahydronaphtostyril (Ia) into the indole ring of 1,3,4,5‐tetrahydrobenz[cd]indole (I1 a) are described.
Herstellung und Eigenschaften von 2a, 3, 4, 5-Tetrahydronaphtostyril-Derivaten. Benz[cd]indol-Reihe
✍ Scribed by C. A. Grob; H. Kappeler; W. Meier
- Publisher
- John Wiley and Sons
- Year
- 1961
- Tongue
- German
- Weight
- 628 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
The authors have studied the reduction of naphtostyril (I, R = H) and of the corresponding 4‐methoxy derivative IIIa by amalgamated sodium in water to 2a,3,4,5‐tetrahydronaphtostyril (II, R = H) and its 4‐keto derivative IV, respectively.
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