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http://nopr.niscpr.res.in/handle/123456789/18080| Title: | Mechanism of peroxide reactions: Kinetics of oxidation of aromatic aldehydes by peroxomonosulfuric acid |
| Authors: | Panda, Radhasyam Acharya, Prabhat Ku. |
| Issue Date: | Apr-2005 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | Int. Cl.7 C07B33/00 |
| Abstract: | The
kinetics of oxidation of benzaldehyde and p-nitrobenzaldehyde by peroxomonosulfuric
acid (PMSA) have been carried out over a wide pH range 0-9.5 at 35°C. The reactions obey second order kinetics,
first order each in [PMSA]
and
[substrate]. The observed v-shaped pH-rate
profile has been rationalised by invoking HSO , SO ,
the protonated and unprotonated forms of aldehyde as the reactive species, and
a suitable rate law has been proposed. The mechanism of oxidation involves
rate-determining nucleophilic attack of the peroxo anion on carbonyl-Carbon of
the substrate species, followed by hydride ion shift and oxygen-oxygen bond
fission to yield the products. The activation parameters of the react ions are
reported.
|
| Page(s): | 710-714 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.44A(04) [April 2005] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 44A(4) 710-714.pdf | 1.03 MB | Adobe PDF | View/Open |
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