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Synthesis of 1,6-dihydro-5-hydroxy-6-oxo-3-(trifluoromethyl)-4-pyridazinecarboxylates

โœ Scribed by Shridhar G. Hegde; Claude R. Jones

Book ID
112130795
Publisher
Journal of Heterocyclic Chemistry
Year
1993
Tongue
English
Weight
494 KB
Volume
30
Category
Article
ISSN
0022-152X

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โœ Christian Deshayes; Suzanne Gelin ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 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