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Reaction of 2-substituted 5,5-dimethyl-4-oxo-1-pyrroline-1-oxides with electrophilic reagents

✍ Scribed by V. A. Reznikov; L. A. Vishnivetskaya; L. B. Volodarskii

Book ID
112448619
Publisher
Springer
Year
1990
Tongue
English
Weight
507 KB
Volume
39
Category
Article
ISSN
1573-9171

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A new ring transformation: Synthesis of 5,5-dimethyl-3-oxo-1-pyrroline 1-oxides from 6,6-dimethyl-4-oxo-5,6-dihydro-1,2,4h-oxazines
✍ Christian Deshayes; Suzanne Gelin πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 French βš– 358 KB

The nitrosation of some y,&unsaturated B-diketo compounds affords the 3-substituted 4-oxo-5,6-dihydro-1,2,4ff-oxaxines. These compounds are converted to the isomeric 3-oxo-1-pyrroline l-oxides by a facile thermal rearrangement. In connection with our study of y,s-unsaturated 6-ketoesters1'2, we have