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http://nopr.niscpr.res.in/handle/123456789/2197| Title: | Kinetics and mechanism of oxidation of aliphatic alcohols by [bis(trifluoroacetoxy)iodo]benzene |
| Authors: | Banerjia, Jayshree Sharmaa, Pradeep K Banerjib, Kalyan K |
| Issue Date: | Aug-2008 |
| Publisher: | CSIR |
| IPC Code: | Int.Cl.⁸ C07B33/00 |
| Abstract: | The oxidation of some aliphatic alcohols by [bis(trifluoro-acetoxy)iodo]benzene (TFAIB) in aqueous acetic acid solution leads to the formation of the corresponding carbonyl compounds. The reaction is first order in TFAIB and a Michaelis-Menten kinetics is obtained with respect to the alcohols. The reaction shows a first order dependence on hydrogen ions. The oxidation of [1,1–²H₂]ethanol and [2-²H]propan-2-ol exhibits the presence of a substantial primary kinetic isotope effect at 298 K (kH/kD = 3.64 and 3.89 respectively). The rate of disproportionation of the intermediate is susceptible to both polar and steric effects of the substituents. A suitable mechanism has also been proposed. |
| Page(s): | 1213-1217 |
| ISSN: | 0376-4710 |
| Appears in Collections: | IJC-A Vol.47A(08) [August 2008] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 47A(8) 1213-1217.pdf | 62.47 kB | Adobe PDF | View/Open |
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