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Adding local short description: "Chemical reaction", overriding Wikidata description "A chemical reaction that involves reacting an aromatic hydrocarbon, in the presence of hydrogen gas to form a simpler aromatic hydrocarbon that does not have any functional groups." (Shortdesc helper) |
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{{Short description|Chemical reaction}}
'''Hydrodealkylation''' is a chemical reaction that often involves reacting an [[aromatic hydrocarbon]], such as [[toluene]], in the presence of [[hydrogen]] gas to form a simpler aromatic hydrocarbon devoid of [[functional group]]s. An example is the conversion of [[1,2,4-trimethylbenzene]] to [[xylene]].<ref name="FP">[http://www.freepatentsonline.com/6509289.html Free Patents Online]</ref> This chemical process usually occurs at high temperature, at high pressure, or in the presence of a [[catalyst]]. These are predominantly [[transition metal]]s, such as [[chromium]] or [[molybdenum]].
==Examples==
* [[Benzene#Toluene hydrodealkylation|Toluene hydrodealkylation to benzene]]
* [[Transalkylation]]
==References==
{{Reflist}}
{{Functional Groups}}
[[Category:Addition reactions]]▼
{{reaction-stub}}
▲[[Category:Addition reactions]]
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