Phenylene group

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Compounds with a phenylene group ( blue ) with R 1 , R 2 = organyl group (alkyl group, aryl group, acyl group etc.), halogen, hydroxy radical, metal etc., ortho- phenylene group, meta- phenylene group, para- phenylene group, ortho- xylene , meta -Xylene, para -Xylene (from top left to bottom right).

In organic chemistry, a phenylene group , also known as a phenylene radical, is a phenyl group that is bonded twice, i.e. the atomic group –C 6 H 4 -. Examples of compounds having a phenylene group as structural motif are ortho -, meta - and para - xylene , ortho -, meta - and para - phenylenediamine , ortho -, meta - and para - hydroxybenzoic acid and phthalic acid and phthalic anhydride .

The phenylene group should not be confused with the phenyl group (–C 6 H 5 ), the benzyl group (–CH 2 Ph) or the benzoyl group (–C (O) Ph).

An example of a molecule with a phenylene group that is important in everyday life is acetylsalicylic acid (ASA), a medicinal substance .

See also

Individual evidence

  1. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 4: M-Pk. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1985, ISBN 3-440-04514-5 , p. 3137.
  2. ^ Brockhaus ABC Chemie , VEB FA Brockhaus Verlag Leipzig 1965, p. 1540.
  3. ^ Brockhaus ABC Chemie , VEB FA Brockhaus Verlag Leipzig 1965, p. 1053.
  4. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 4: M-Pk. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1985, ISBN 3-440-04514-5 , p. 3201.
  5. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 4: M-Pk. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1985, ISBN 3-440-04514-5 , p. 3135.
  6. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 1: A-Cl. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1979, ISBN 3-440-04511-0 , p. 409.
  7. ↑ Otto-Albrecht Neumüller (Ed.): Römpps Chemie-Lexikon. Volume 1: A-Cl. 8th revised and expanded edition. Franckh'sche Verlagshandlung, Stuttgart 1979, ISBN 3-440-04511-0 , p. 408.