Determination of Acid Dissociation Constants (pKa) of Bicyclic Thiohydantoin-Pyrrolidine Compounds in 20% Ethanol-Water Hydroorganic Solvent
Joint Authors
Nural, Yahya
Sarı, Hayati
Döndaş, H. Ali
Belveren, Samet
Atabey, Hasan
Gemili, Müge
Source
International Journal of Analytical Chemistry
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-30
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The acid dissociation constants of potential bioactive fused ring thiohydantoin-pyrrolidine compounds were determined by potentiometric titration in 20% (v/v) ethanol-water mixed at 25±0.1°C, at an ionic background of 0.1 mol/L of NaCl using the HYPERQUAD computer program.
Proton affinities of potential donor atoms of the ligands were calculated by AM1 and PM3 semiempiric methods.
We found, potentiometrically, three different acid dissociation constants for 1a–f.
We suggest that these acid dissociation constants are related to the carboxyl, enol, and amino groups.
American Psychological Association (APA)
Nural, Yahya& Döndaş, H. Ali& Sarı, Hayati& Atabey, Hasan& Belveren, Samet& Gemili, Müge. 2014. Determination of Acid Dissociation Constants (pKa) of Bicyclic Thiohydantoin-Pyrrolidine Compounds in 20% Ethanol-Water Hydroorganic Solvent. International Journal of Analytical Chemistry،Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-486833
Modern Language Association (MLA)
Nural, Yahya…[et al.]. Determination of Acid Dissociation Constants (pKa) of Bicyclic Thiohydantoin-Pyrrolidine Compounds in 20% Ethanol-Water Hydroorganic Solvent. International Journal of Analytical Chemistry No. 2014 (2014), pp.1-6.
https://search.emarefa.net/detail/BIM-486833
American Medical Association (AMA)
Nural, Yahya& Döndaş, H. Ali& Sarı, Hayati& Atabey, Hasan& Belveren, Samet& Gemili, Müge. Determination of Acid Dissociation Constants (pKa) of Bicyclic Thiohydantoin-Pyrrolidine Compounds in 20% Ethanol-Water Hydroorganic Solvent. International Journal of Analytical Chemistry. 2014. Vol. 2014, no. 2014, pp.1-6.
https://search.emarefa.net/detail/BIM-486833
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486833