Chemistry:C4-Benzenes

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The C4-benzenes are a class of organic aromatic compounds which contain a benzene ring and four other carbon atoms. There are three tetramethylbenzenes, six dimethylethylbenzenes, three diethylbenzenes, three isopropylmethylbenzenes, three n-propylmethylbenzenes and four butylbenzenes. The saturated compounds have formula C10H14 and molecular weight 134.22 g/mol. C4-benzenes are found in petroleum.[1] Petrol (gasoline) can contain 5-8% C4-benzenes.[2]

Cymenes

Tetramethylbenzenes

Other

Saturated

  • 1,2,3-Ethyldimethylbenzene
  • 1,2,4-Ethyldimethylbenzene
  • 1,2,5-Ethyldimethylbenzene
  • 1,2,6-Ethyldimethylbenzene
  • 1,3,4-Ethyldimethylbenzene
  • 1,2,5-Ethyldimethylbenzene
  • ortho-diethylbenzene
  • meta-diethylbenzene
  • para-diethylbenzene
  • 1,2-Propylmethylbenzene
  • 1,3-Propylmethylbenzene
  • 1,4-Propylmethylbenzene
  • n-Butylbenzene
  • sec-Butylbenzene
  • tert-Butylbenzene
  • Isobutylbenzene

Unsaturated

References

  1. Hill, Ronald J.; Lu, Shan-tan; Tang, Yongchun; Henry, Mitchell; Kaplan, Isaac R. (2004). "C4-benzene and C4-naphthalene thermal maturity indicators for pyrolysates, oils and condensates". The Geochemical Society Special Publications 9: 303–319. doi:10.1016/S1873-9881(04)80022-1. ISBN 9780444516473. 
  2. Kostecki, Paul T.; Calabrese, Edward J. (1993) (in en). Hydrocarbon Contaminated Soils. CRC Press. p. 217. ISBN 9781566700184. https://books.google.com/books?id=K0PNgljP75wC&pg=PA217.