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The alkylbenzenes are derivatives of benzene, in which one or more hydrogen atoms are replaced by alkyl groups of different sizes. They are a subset of the aromatic hydrocarbons. The simplest member is toluene, in which a hydrogen atom of the benzene was replaced by a methyl group.

Examples of alkylbenzenes
parent compound:
Benzene circle.svg



Ortho-Xylol - ortho-xylene 2.svg Meta-Xylol - meta-xylene 2.svg Para-Xylol - para-xylene 2.svg
Xylene (o-, m-, p-Xylene)

Ethylbenzol.svg Cumol.svg P-Cymol.svg
Ethylbenzene     Cumene     p-Cymene

Comment: The structural formulas of aromatic compounds are usually shown only in one mesomeric form.


  • Allinger, Cava, de Jongh, Johnson, Lebel, Stevens: Organische Chemie, 1. Auflage, Walter de Gruyter, Berlin 1980, ISBN 3-11-004594-X, pp. 367–368, 560–562.
  • Streitwieser / Heathcock: Organische Chemie, 1. Auflage, Verlag Chemie, Weinheim 1980, ISBN 3-527-25810-8, pp. 1051, 1073–1080.
  • Beyer / Walter: Lehrbuch der Organischen Chemie, 19. Auflage, S. Hirzel Verlag, Stuttgart 1981, ISBN 3-7776-0356-2, pp. 442–444.
  • Morrison / Boyd: Lehrbuch der Organischen Chemie, 3. Auflage, Verlag Chemie, Weinheim 1986, ISBN 3-527-26067-6, pp. 707–728.
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