Effect of some pyridinium based compounds on the hydrolysis of carboxylate ester was written by Singh, Namrata;Ghosh, Kallol K.;Marek, Jan;Kuca, Kamil. And the article was included in Indian Journal of Chemistry in 2012.Quality Control of 1-Dodecylpyridin-1-ium bromide This article mentions the following:
Nucleophilic reactivity of some pyridinium based compounds towards hydrolysis of p-nitrophenyl acetate (PNPA) has been studied at pH 9.0 and temperature 27鎺矯. The nucleophilic reactivity of newly synthesized pyridinium compounds has been compared with com. available pyridinium based compounds such as pralidoxime and dodecylpyridinium bromide. It has been observed that with an increase in the concentration of these compounds there is an increase in the first order rate constant of the reaction. The apparent acid dissociation constant (pKa) of some compounds have also been determined spectrophotometrically. Oximate ions released from 3-hydroxyiminomethyl-1-dodecylpyridinium bromide (3-HIDDPB) and pralidoxime have proved to be better nucleophilic agents for cleavage of carboxylate ester. Present investigation explores the structure-activity relationship of some pyridinium based compounds with same alkyl tail length. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Quality Control of 1-Dodecylpyridin-1-ium bromide).
1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. Pyridine is diamagnetic and has a diamagnetic susceptibility of 閳?8.7 鑴?10閳? cm3璺痬ol閳?.The molecular electric dipole moment is 2.2 debyes. The standard enthalpy of formation is 100.2 kJ璺痬ol閳? in the liquid phase and 140.4 kJ璺痬ol閳? in the gas phase. Pyridine, its benzo and pyridine-based compounds play diverse roles in organic chemistry. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Quality Control of 1-Dodecylpyridin-1-ium bromide