ChemInform Abstract: Ring-Chain Tautomerism of 2-Aryl-Substituted Imidazolidines.
β Scribed by L. LAZAR; A. GOEBLYOES; F. EVANICS; G. BERNATH; F. FUELOEP
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 27 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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As shown by NMR spectroscopy, the reaction of 3-aminopropionamide oxime (9) with benzaldehyde or benzaldehyde derivatives 2a ~ d substituted with electron-attracting substituents affords products which exist as an equilibrium mixture of tautomers involving the open-chain 3-@enzylidenearnino)propiona
The 70 eV electron ionization mass spectra of 35 differently 2-phenyl-and 1-nitrogen-substituted imidazolidines were studied. Tautomerism was observed between the open-chain and ring forms in the gas phase. The fragment ions detected in the low-energy mass spectra showed that in the gas phase the co
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