Cyclization Modes in Anilides of <i>N</i>-Protected 3-Oxo-4-phenylaminobutyric Acid Under Knorr Conditions
Anilides of 3-oxo-4-phenylaminobutyric acid with Troc or COOEt protection at the phenylamino group undergo competing cyclization processes in neat polyphosphoric acid at 80 °C. Depending on the protecting group and the duration of the process, three main products in different ratios are formed. Alon...
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| Main Authors: | Plamen Angelov, Yordanka Mollova-Sapundzhieva |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | Molbank |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1422-8599/2024/4/M1933 |
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