𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Über eine Ringerweiterungsreaktion an einem Barbitursäure-Derivat. 10. Mitteilung über Umamidierungsreaktionen

✍ Scribed by Christjohannes Jenny; Manfred Hesse


Publisher
John Wiley and Sons
Year
1981
Tongue
German
Weight
288 KB
Volume
64
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis


A Ring Enlargement Reaction with a Barbiturate

The (6‐membered) barbituric acid derivative 3 was synthesized and treated with KF/DMF/18‐crown‐6 to form the ring‐enlarged 14‐membered compound 8 in good yield.


📜 SIMILAR VOLUMES


Die «Zip»-Reaktion: Eine neue Ringerweit
✍ Urs Kramer†; Armin Guggisberg; Manfred Hesse; Hans Schmid† 📂 Article 📅 1978 🏛 John Wiley and Sons 🌐 German ⚖ 687 KB

**The Zip‐reaction: A New Method for the Synthesis of Macrocyclic Polyaminolactams** The 21‐ and 25‐membered aminolactams **11** and **25** were synthesized from the 13‐membered lactam **4**. To introduce the ring enlargement unit (a propylamino group) **4** was __N__‐alkylated using acrylonitrile