6-Hydroxy-5,6-dihydro-4H-1,2-oxazine 2-oxide system. Absence of ring-chain tautomerism in 5,5-dinitro-2-pentanone
β Scribed by Nielsen, Arnold T.; Archibald, Thomas G.
- Book ID
- 118177807
- Publisher
- American Chemical Society
- Year
- 1969
- Tongue
- English
- Weight
- 605 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0022-3263
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π SIMILAR VOLUMES
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
1 ,ZOxazines, bis(trimethylsily1)amino-substituted / Hydrogenolysis / Deprotonation / Alkylation / Deuteration 1,2-Oxazine 1 was converted into an unusual condensation product 5 by treatment with tetra-n-butylammonium fluoride. The hydrogenolysis of 1 with Pd/C as catalyst provided the expected prim
## Abstract A synthesis of some 4,5βdihydroβ6__H__β1,2βoxazinβ6βone derivatives is described.