Hydrodealkylation

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 groups. An example is the conversion of 1,2,4-trimethylbenzene to xylene.^[1] This chemical process usually occurs at high temperature, at high pressure, or in the presence of a catalyst. These are predominantly transition metals, such as chromium or molybdenum.

Examples

Only carbon,
hydrogen
and oxygen

Hydrocarbons	Allene Alkene (Allyl, Vinyl) Alkyl (Methyl, Ethyl, Propyl, Butyl, Pentyl) Alkyne Benzyl Carbene Cumulene Methylene bridge Methylene group Methine Phenyl

Other	Acetoxy Acetyl Acryloyl Acyl Aldehyde Alkoxy (Methoxy) Benzoyl Carbonyl Carboxyl Dioxirane Epoxide Ester Ether Ethylenedioxy Hydroxy Ketone Methylenedioxy Peroxide (Organic)

Only one
element
apart from
C, H, O

Nitrogen	Amine Azo compound Cyanate Hydrazone Imide Imine Isocyanate Isonitrile Nitrene Nitrile Nitro compound Nitroso compound Organic amide Oxime

Phosphorus	Phosphonate Phosphonous

Sulfur	Disulfide Sulfone Sulfonic acid Sulfoxide Thial Thioester Thioether Thioketone Thiol

Selenium	Selenol Selenonic acid Seleninic acid Selenenic acid

Tellurium	Tellurol

Other

See also chemical classification, chemical nomenclature (inorganic, organic)

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