Acceleration of the rearrangement of long-lived carbocations on aluminum oxide surfaces |
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Authors: | G. I. Borodkin Sh. M. Nagi M. M. Shakirov V. G. Shubin |
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Affiliation: | 1. Novosibirsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR, USSR
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Abstract: | 1. | Acceleration of the degenerate and nondegenerate rearrangement of long-lived 1-R-1,2,3,4,5,6-hexamethylbenzenium ions (R=Me, Ph) on alumina surfaces as compared with solutions has been observed. | 2. | These results contradict the criterion of the involvement of carbocations as intermediates in heterogeneous catalytic processes, which requires that the activation energies of the acid-catalyzed isomerization of hydrocarbons under homogeneous and heterogeneous conditions should be similar. | Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 133–137, January, 1989. |
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