Tautomerism of derivatives of azines. 17. Effect of solvents on the position of the azinyl-ylidene tautomeric equilibrium of substitued azinylmethanes
β Scribed by O. P. Petrenko; V. V. Lapachev; I. K. Korobeinicheva; V. P. Mamaev
- Publisher
- Springer US
- Year
- 1987
- Tongue
- English
- Weight
- 424 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0009-3122
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π SIMILAR VOLUMES
The effects that solvents have on the tautomerization of N,N-dimethylglycine are analyzed and the solvent's dipolarity/ polarizability and acidic properties appear to play important roles in the solvation of the zwitterionic tautomer. Owing to the existence of a stable intramolecular hydrogen-bonded
## 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