Abstract
Abstract The oxidation of benzaldehydes by peroxomonophosphoric acid has been found to proceed by (i) −d[peroxomonophosphoric acid]⁄dt∝ [benzaldehyde][peroxomonophosphoric acid][H+]x where x=a fraction at [H+]<0.5 M and x=0 at [H+]>0.5 M and (ii) −d[peroxomonophosphate]⁄dt∝ [benzaldehyde][peroxomonophosphate][OH−]y where y=a fraction at [OH−]<0.1 M and y=0 at [OH−]>0.1 M. In the alkaline oxidation Hammett relationship is obeyed excellently, unlike the oxidation in the acid medium. The oxidation mechanisms are discussed in terms of a nucleophilic attack of the peroxomonophosphoric acid species on the carbonyl carbon centre. Thermodynamic parameters have been evaluated to substantiate the mechanisms.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.