1H- and 13C-NMR study of rotational isomerism in N-vinyltetrazoles

Autor:	A. V. Afonin, S. R. Buzilova, O. A. Zasyadko, A. K. Bogens, Yu. V. Brekhov, L. I. Vereshchagin
Rok vydání:	1989
Předmět:	chemistry.chemical_compound education.field_of_study Crystallography chemistry Stereochemistry Organic Chemistry Population Substituent Tetrazole Carbon-13 NMR Ring (chemistry) education Conformational isomerism
Zdroj:	Chemistry of Heterocyclic Compounds. 25:1385-1389
ISSN:	1573-8353 0009-3122
Popis:	The 1H- and 13C-NMR spectral parameters of N-vinyltetrazoles have been analyzed. It has been found that rotational isomerism is inherent to 1- and 2-vinyltetrazoles. A quantitative estimate of the ratio of rotational isomers has been made. In the case of 1-vinyltetrazoles, introduction of a substituent to the 5-position in the tetrazole ring stabilizes the trans-orientation of the vinyl group relative to the substituent, while in the case of 2-vinyltetrazoles the presence of a substituent in the 5-position of the ring essentially does not affect the conformer population.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::70b0131e01003447fd926a3e9fcf76db https://doi.org/10.1007/bf00473869 Zobrazit plný text záznamu Full text from SpringerLink