4,5-dihydro-5,5-dimethyl-3-oxo-3H-1,2,4-triazole-1-oxide. The unpredicted azoxy-regioisomer
β Scribed by J. G. Schantl; J. Svetlik; V. Kettmann
- Publisher
- Springer Vienna
- Year
- 1994
- Tongue
- English
- Weight
- 273 KB
- Volume
- 125
- Category
- Article
- ISSN
- 0026-9247
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π SIMILAR VOLUMES
In the title compound, C 11 H 14 N 2 O, the diazepine ring adopts a skewed boat conformation. The molecule is stabilized by N-HΓ Γ ΓO intermolecular hydrogen bonds, forming a zigzag chain parallel to the b axis.
In the molecule of the title compound, C 9 H 9 N 3 O, the dihedral angle between the planar rings is 7.49 (3) . In the crystal structure, intermolecular N-HΓ Γ ΓO hydrogen bonds link the molecules into dimers, which may be effective in the stabilization of the crystal structure.
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
Aziridinone / u-Lactam 1 Decarbonylation Photolysis of 3-Methyl-5.5-dipheny1-3,5-dihydro-4H-1,2,3-tria~ol-4-0ne~'~ Irradiation (h 2 280 nm) of a degassed solution in deuterated benzene of the dihydro-1,2,3-triazolone 5 yields the dihydroin-dolone 7, the imine 9, and its photoreduction product 10, be