**Investigations on Quaternary Pyridinium Salts, XVI. — Note on Cyclization Reactions with Salts of Amides of Nicotinoylamino Acids** Quaternary salts **2** of the amides of α‐nicotinoylamino acids cyclize under the influence of base to give the seven‐ or fourteen‐membered rings **3** and **4**, re
✦ LIBER ✦
Untersuchungen an quartären Pyridinium-Salzen, XII. Notiz über Pseudobasen aus Pyridinium-alkoxiden
✍ Scribed by Gündel, Wolf-Hellmut
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 156 KB
- Volume
- 1980
- Category
- Article
- ISSN
- 0947-3440
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✦ Synopsis
Abstract
Die Pyridiniumsalze 1 wurden mit wäßriger Base zu den Pseudobasen 2 umgesetzt, die mit Alkoholen zu den Alkoxydihydropyridinen 3 reagieren.
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**Investigations on Quaternary Pyridinium Salts, XVIII^1)^. – Note on Synthetic Cyclopeptides with 1,4‐Dihydronicotinamide Moiety** Quaternary salts of the amides of __N__‐nicotinoyldipeptides form under the influence of base dimers with 20‐membered rings, cyclopeptide‐like substances with two 1,4‐