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Kinetics of the acid-catalyzed equilibration of methylenecyclohexane and 1-methylcyclohexene

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Abstract

The rates of isomerization of methylenecyclohexane and 1-methylcyclohexene have been measured in acetic acid, usingp-toluenesulfonic acid as a catalyst, at temperatures of 20.30, 24.07, 30.00, 32.30, 39.85 and 40.21 °C. The overall forward and reverse rate constants can be expressed as k 01 =4.41×108 exp (−17.6×103/RT) s−1 and k 02 =0.64×108 exp ((−19.5×103/RT) s−1. From the difference in the activation energies the heat of isomerization is estimated as 7.9 kJ mol−1.

Abstract

Скорости изомеризации метиленциклогексана и 1-метилциклогексена были измерены в уксусной кислоте, используя п-толуолсульфокислоту как катализатор при температурах 20,30, 24,07, 30,00, 32,30, 39,85 и 40,21 °C. Суммарные константы скорости прямой и обратной реакций могут быть выражены как k 01 =4.41×108 exp (−17.6×103/RT) сек−1 и k 02 =0.64×108 exp (−19.5×103/RT) сек−1. Исходя из разницы в знергиях активации теплота изомеризации равна 7,9 кДж/моль.

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  1. Department of Chemistry, Delft University of Technology, P. O. Box 5045, 2600 GA, Delft, The Netherlands

    M. Peereboom

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  1. M. Peereboom
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Peereboom, M. Kinetics of the acid-catalyzed equilibration of methylenecyclohexane and 1-methylcyclohexene. React Kinet Catal Lett 21, 505–510 (1982). https://doi.org/10.1007/BF02095849

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