**Synthesis of Macrocyclic Lactones by Ring Enlargement Reaction** Treatment of 3‐(1‐nitro‐2‐oxocyclohexyl)propanal (**1**) prepared by __Michael__ addition of 2‐nitrocyclohexanon and acrylaldehyde with methyltri (2‐propoxy)tita‐nium yielded a mixture of **2** and **3** which was converted into 6‐n
Synthese makrocyclischer Lactame aus Ketonen durch Ringerweiterung. Vorläufige Mitteilung
✍ Scribed by Rudolf Wälchli; Manfred Hesse
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- German
- Weight
- 139 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Synthesis of Macrocyclic Lactams from Ketones by Ring Enlargement Reaction
2‐Nitroalkanon 1 was converted to the N‐substituted amide 3 by condensation with acrylaldehyde followed by reductive amination. Under the analogous reaction conditions, 2‐nitrocyclododecanon (4) led to 12‐nitro‐15‐pentadecanlactam (6).
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