| Autor: |
Medvedeva, O. N., Gudkov, B. S., Badrian, A. S., Kiperman, S. L. |
| Zdroj: |
Russian Chemical Bulletin; January 1977, Vol. 26 Issue: 1 p11-15, 5p |
| Abstrakt: |
1.Study has been made of the hydrogen-deuterium exchange, in cyclohexanol under dehydrogenation conditions and in cyclohexanone under hydrogenation conditions, on a copper-magnesium cataiyst. The overall rate of exchange in the alcohol and the rates of exchange in the hydroxyl group and in thea positions are higher than the rate of dehydrogenation.2.Kinetic isotope effects have been measured for the replacement of the cyclohexanol hydroxyl-group hydrogen by deuterium, for replacement of the excess hydrogen by excess deuterium in the dehydrogenation reaction, and for replacement of the molecular hydrogen by molecular deuterium in the hydrogenation reaction.3.The results of this study have been used as a basis for a proposed reaction scheme involving slowß-hydrogen elimination followed by rapida-hydrogen elimination and enol regrouping. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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