## Abstmct: The a@ sub&umts at positions 4 and 6 do not erert observable &unmic cffcts on the ting-chain tautomeric mtios of 2,4-or 2,6-aTaqbubstituted-tetmhydm-1,~~. On the other hand, the ekaivnic @ect of the Z-a~yl subs&em is mat&& in all eight seties s&die4 the equilibria CM be desctibed @ the
Substituent effect on “Ring-Chain” tautomerism of 1,2,3,4-Tetrahydro-s-tetrazines
✍ Scribed by Prof. Dr. M. M. El-Abadelah; A. Q. Hussein; A. S. Abushamleh
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 237 KB
- Volume
- 333
- Category
- Article
- ISSN
- 1615-4150
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract magnified image The condensation products of 2‐aminoethanol or 3‐aminopropanol (bearing an alkyl substituent on the carbon adjacent to the nitrogen) with substituted benzaldehydes proved to exist in CDCl~3~ at 300 K as threecomponent tautomeric mixtures of the diastereomeric five‐ or s
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