Investigation of condensed heteroaromatic systems including a thiophene ring
Autor: | D. D. Gverdtsiteli, V. A. Ferapontov, V. P. Litvinov, E. G. Ostapenko |
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Rok vydání: | 1973 |
Předmět: | |
Zdroj: | Chemistry of Heterocyclic Compounds. 9:173-179 |
ISSN: | 1573-8353 0009-3122 |
DOI: | 10.1007/bf00569155 |
Popis: | A method for the gas-chromatographic analysis of high-boiling polycondensed heteroaromatic compounds with a thiophene ring (CHC) containing up to five condensed rings was developed. The optimum analysis conditions were found, the retention times were determined, and the dependence of the elution characteristics on the column temperature and CHC structure was followed. Elution occurs in conformity with the number of rings in the CHC molecule, and compounds with the same number of rings (with allowance for substituents with a benzenering) are arranged in sufficiently isolated groups. The phenomenon of inversion of the retention volumes of some CHC as the temperature rises was noted. A method for the indirect analysis of CHC by chromatography of the products of desulfurization of them was developed. |
Databáze: | OpenAIRE |
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