Ring-chain tautomerism of thiosemicarbazones of salicylaldehyde and pyridinecarbaldehyde in acidic media

Autor:	V. V. Alekseev, K. N. Zelenin, O. B. Kuznetsova, I. Ya. Kalvin'sh, L. Ya. Leitis
Rok vydání:	1994
Předmět:	chemistry.chemical_compound Proton chemistry Nitrogen atom Chain (algebraic topology) Salicylaldehyde Organic Chemistry Trifluoroacetic acid Organic chemistry Protonation Ring (chemistry) Tautomer Medicinal chemistry
Zdroj:	Chemistry of Heterocyclic Compounds. 30:107-109
ISSN:	1573-8353 0009-3122
DOI:	10.1007/bf01164745
Popis:	On the basis of NMR spectroscopic data, it has been found that 4-substituted thosemicarbazones of salicylaldehyde and α-, β-, and γ- pyridinecarbaldehydes in solutions of trifluoroacetic acid are tautomeric mixtures of protonated linear and cyclic 1, 3, 4-thiadiazolidine-2-imine forms, the linear tautomer having an azinethiol structure with localization of the proton on the N(2) nitrogen atom.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6a1b6f1ce42008082aff7c2c7abe3351 https://doi.org/10.1007/bf01164745 Zobrazit plný text záznamu Full text from SpringerLink