✦ LIBER ✦
Intramolekulare Additionen α-lithiierter Amide; eine neue Synthese von 2-Aryl- und 2-Vinylindolen
✍ Scribed by Hans Greuter; Hans Schmid
- Publisher
- John Wiley and Sons
- Year
- 1974
- Tongue
- German
- Weight
- 402 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
The N‐alkylated 2‐benzoylamino‐benzophenones 2a–e on treatment with lithium diisopropylamide in tetrahydrofuran at − 78° gave the cyclic alchols 3a–e which were dehydrated with phosphorous oxychloride/pyridine to give the indoles 4a–e in 30–72% yield (Scheme 1).