Synthesis of substituted 2-amino-5,6-dihydro-4h-1,3-oxazines and 2-iminotetrahydro-1,3-oxazines
β Scribed by L. A. Ignatova; A. E. Gekhman; P. L. Ovechkin; B. V. Unkovskii
- Book ID
- 112326944
- Publisher
- Springer US
- Year
- 1974
- Tongue
- English
- Weight
- 222 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0009-3122
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## Abstract The assignment of the proton and carbon signals and conformations of substituted 5,6βdihydroβ4__H__β1,3βoxazines were determined by the combination of ^1^H, ^13^C, COSY and HETCOR spectral data.
AbstmcC Substintted S.6-dihydro-4H-l3axminu are prepared by the acid-catalyzed amidoalI&tion of rhe terminal o&ii. S#-Dihydro-4H-oxazines undergofvrrhcr lran@ormaiions involting lhe he&o-ring