Aromatic compound


Benzene is an organic chemical compound with the molecular formula C6H6
.

benzene_02[1].gif

Like the ring structure, the aromatic compound also can write like resonance structure.
Resonance structures: differ in the placement of bond between atoms.
2_6benz.gif


Aromatic rings (also known as aromatic compounds) are hydrocarbons which contain benzene, or some other related ring structure.

Different kind of aromatic compounds (Don’t to remember it):.



Anthracene :
Anthracene.gif

Naphthalene :
Naphthalene.gif

Phenol :
Phenol.gif

Toluene :
Toluene.gif


Naming the aromatic compounds:

1. Find the longest chain of carbon atoms.
2. Name that longest chain with the alkane name.
3. Find the substituents and name each of them with the appropriate group name.
4. Number the carbons in the chain such that the lowest number is given to the group nearest one end of the chain.
5. List the groups alphabetically in front of the longest chain name.

6. Before each group name with a prefix indicating how many of them are present in the molecule. In front of the prefix,
list the numbers of each group in the molecule.



Example:

aromatic14.gif
(1,3-dichlorobenzene )


http://www.chemguide.co.uk/basicorg/conventions/names3.html
http://www.uea.ac.uk/~c286/aromaticnotes.htm