ISSN:
1588-2837
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Isotope exchange reaction of ethylbenzene with water or hydrogen has been examined over Fe2O3−K2CO3−Cr2O3 catalyst. The participation of the hydrogen attached to α-carbon or phenyl group was observed. The exchange rate of the α-hydrogen was compared for different alkylbenzenes and found that toluene was the most active, whereas cumene was inactive. This order suggested that the α-hydrogen dissociated as a proton. π-Adsorbed state was supposed as an intermediate of dehydrogenation, which dissociates the α-hydrogen reversibly as a proton on a basic site. Including the results of exchange reaction of styrene, the overall route of dehydrogenation is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02073038
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