Aromatic Compounds - PowerPoint PPT Presentation

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Aromatic Compounds

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  1. Aromatic Compounds • Aromatic compounds contain benzene. • Benzene C6H6 has 6 C atoms and 6 H Atoms • Two possible ring structures show benzene.

  2. Benzene Structure The structures for benzene are also written as one formula with a circle within the ring to represented the alternating double bonds. Benzene structure

  3. Aromatic Compounds in Nature and Health Many aromatic compounds are common in nature and in medicine.

  4. Naming Aromatic Compounds Aromatic compounds are named with benzene as the parent chain. One side group is named in front of the name benzene. methylbenzene chlorobenzene

  5. Naming Aromatic Compounds When two groups are attached to benzene, the ring is numbered to give the lower numbers to the side groups. The prefixes ortho (1,2), meta (1,3-) and para (1,4-) arealso used.

  6. Some Common Names Some substituted benzene rings also use a common name. Then naming with additional more side groups uses the ortho-, meta-, para- system.