| Autor: |
Stozhkova, G. A., Leonov, V. N., Subbotina, I. V., Shutova, I. V. |
| Zdroj: |
Kinetics & Catalysis; Sep2000, Vol. 41 Issue 5, p625-632, 8p |
| Abstrakt: |
The kinetics of cumyl hydroperoxide (CHP) decomposition catalyzed by molybdenyl propanediolate (Cat) and decomposition products are studied in the presence of 2-methylpropanol-1 (MP). Phenol, acetone, 2-phenylpropanol-2 (PhP), and acetophenone (APh) are the main products of cumyl hydroperoxide decomposition. The concentration of 2-methylpropanol-1 affects not only the ratio between the rates of heterolytic and homolytic decomposition of cumyl hydroperoxide, but also the ratio between the products of hydroperoxide homolysis, that is, the [2-phenylpropanol-2]/[acetophenone] ratio. The dissociation constants calculated for the catalyst-2-methylpropanol-1 and catalyst-2(2-methylpropanol-l) complexes are 0.275 and 4.910 mol/1, respectively. The exchange of hydroperoxide ligands in the ROH-catalyst-ROOH systems was studied by1H NMR spectroscopy. Exchange interactions affect the rate and direction of hydroperoxide decomposition [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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