Ring-chain isomeric transformations. The cyclohemiketal structure of 4,4,4-trifluoro-1-(2-hydroxyphenyl)-1,3-butanediones
β Scribed by Enrico Morera; Giorgio Ortar
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 198 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
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## Abstract The complex Eu(btfa)~3~ (phen) (btfa=4,4,4βtrifluoroβ1βphenylβ1, 3βbutanedione, phen = 1,10βphenanthroline) has been prepared and characterized by elemental analysis, IR and UV spectroscopies. The crystal and molecular structures of the complex have been determined by Xβray diffraction
Thiohydrazide compounds 1 react with lactam acetals 2 or solution, however, most of them undergo a reversible ringlactim ethers 3 by condensation giving unusual zwitterionic chain transformation to novel 2-(o-aminoalkyl)-1,3,4-thiaditautomers 5 of lactam thioacylhydrazones 4. These compounds azole s