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Chapter 13 Unsaturated Hydrocarbons

Chapter 13 Unsaturated Hydrocarbons. 13.6 Aromatic Compounds. Aromatic Compounds. Benzene is An aromatic compound . A ring of 6 C atoms and 6 H atoms. A flat ring structure drawn with double bonds. Represented by two structures because the electrons move among the C atoms.

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Chapter 13 Unsaturated Hydrocarbons

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  1. Chapter 13 Unsaturated Hydrocarbons 13.6 Aromatic Compounds

  2. Aromatic Compounds Benzene is • An aromatic compound. • A ring of 6 C atoms and 6 H atoms. • A flat ring structure drawn with double bonds. • Represented by two structures because the electrons move among the C atoms.

  3. Benzene Structure • Because the pi electrons in benzene are shared equally among the 6 C atoms, benzene can also be represented as a hexagon with a circle drawn inside.

  4. Aromatic Compounds in Nature and Medicine

  5. Naming Aromatic Compounds • A benzene with a single substituent is often named as a benzene derivative. Methylbenzene Chlorobenzene

  6. Some Common Names • Some substituted benzene rings have common names that have been in use for many years.

  7. Naming Aromatic Compounds • A benzene ring with two or more substituents is numbered to give the lowest numbers to the side groups. • Common names use the prefixes ortho- (1,2-), meta- (1,3-) and para- (1,4-).

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