Evaluation of kinetic parameters for oxidation of thioacids by benzimidazolium dichromate: A mechanistic study

Panday, Dinesh; Jain, Hemant Kumar; Kalal, Reena

doi:10.1016/j.jics.2022.100390

Cited by 2 publications

(1 citation statement)

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“…Mn 2+ ions were introduced into the reaction mixture to investigate the potential involvement of Cr 4+ as an intermediate in the oxidation process. A study previously recognized Mn 2+ as a reliable agent for trapping Cr 4+ intermediates (26). Increasing [Mn 2+ ] led to a decrease in the reaction rates (Table 3), indicating the participation of Cr 4+ with Mn 2+ , as illustrated in expression (iii):…”

Section: Effect Of Adding Mn 2+ Ionsmentioning

confidence: 79%

Insight into D-galactose Oxidation: Kinetic and Mechanistic Analysis with Imidazolium Fluorochromate

Tomar,

Arora,

Singh

2024

Journal of the Turkish Chemical Society Section A: Chemistry

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In a 50% (v/v) aqueous acetic acid medium, a study on the oxidation kinetics of D-galactose by imidazolium fluorochromate (IFC) was conducted. The study revealed unit-order dependence on [D-galactose], [IFC], and [perchloric Acid]. The reaction was catalyzed by perchloric acid, and followed a 1:1 stoichiometric ratio. Adding sodium hyperchlorate (VII) salt did not affect the reaction. Polymerization of acrylonitrile was not observed in the oxidation process. The oxidation rates were retarded on adding Mn2+ ions in the mixture, and rates increased as the reaction medium’s dielectric constant (D) decreased. The observed results follow the Amis and Kirkwood plots {log k1 vs. (1/D) and ((D-1/2D+1))}. Several thermodynamic variables were determined by analyzing the kinetic data across a temperature range. Arabinose and formic acid were formed as the products of the reaction. A mechanistic path involving the formation of an ester followed by hydride ion transfer was proposed.

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Section: Effect Of Adding Mn 2+ Ionsmentioning

confidence: 79%