Acidic properties of N-hetarylacetic acids and inductive constants of N-hetaryl substituents

Acidic properties of N-hetarylacetic acids and inductive constants of N-hetaryl substituents

Podrobná bibliografie
Parent link:Chemistry of Heterocyclic Compounds
Vol. 19, iss. 3.— 1983.— [P. 300-303]
Další autoři: Filippova T. A., Sukhoroslova M. M., Lopatinskii V. P., Filimonov V. D. Viktor Dmitrievich
Shrnutí:Title screen
The inductive constants of the corresponding heterocyclic fragments were calculated on the basis of data on the pKa values obtained by potentiometric titration of derivatives of indole, carbazole, 3-methylcarbazole, tetrahydrocarbazole, 6-methyltetrahydrocarbazole, and phenothiazine. The σRoconstant of the 9-carbazolyl group was also calculated. The enthalpy and entropy of acidic dissociation were calculated from data on the effect of the temperature on the pKa of 9-carbazolylacetic acid. It is shown that the entropy contribution to the free energy of dissociation of 9-carbazolylacetic acid predominates.
Режим доступа: по договору с организацией-держателем ресурса
Vydáno: 1983
Témata:
электронный ресурс
труды учёных ТПУ
карбазолы
диссоциация
On-line přístup:http://dx.doi.org/10.1007/BF00513265
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=654464

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