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Synthesis of 3-Phenyl-4-piperidones from Acetophenone by Shapiro and Aza-Michael Reactions and Their Further Derivatization

✍ Scribed by Anna Rosiak; Christoph Hoenke; Jens Christoffers

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
121 KB
Volume
2007
Category
Article
ISSN
1434-193X

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✍ Ravindra R. Kamble; Prashant R. Latthe; Bharati V. Badami 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 90 KB

## Abstract The bifunctional 3/4‐[acetyl]phenylsydnones **1a, 1b** were subjected to a one‐pot ring conversion to 3‐[3/4‐acetyl]phenyl‐5‐methyl‐3__H__‐[1,3,4]‐oxadiazol‐2‐ones **2a, 2b**, which on further bromination yielded the 3‐[3/4‐bromoacyl]phenyl‐5‐methyl‐3__H__‐[1,3,4]‐oxadiazol‐2‐ones **3a,