Alicyclics and Aromatics:

1. Carbon Chains can form two types of closed loops
2. Alicyclics are loops usually made with single bonds
3. If the parent chain is a loop standard naming rules apply with one addition:
    "cyclo" is added in front of the parent chain
 
   
Cyclopeptane:

1. There are three different ways to draw organic compounds

complete structural diagrams: 

condensed structural diagrams: 

2. Numbering can start anywhere and go C.W. or C.C.W on the loop but side chains need
    the lowest numbers possible

ex: trimethyl hexane : 

3. Loops can be a side chain
4. Same rules apply but the side chain is given a cyclo-prefix

ex: cyclobutyl octane 

Aromatics:


1. Benzene [ C6H6 ] is a cyclic hydrocarbon with unique bonds between the carbon atoms
2. Structurally it can be drawn with alternating double bonds
3. Careful analysis shows that all 6 C-C bonds are identical and really represent
     a  1.5 bond
4. This is due to e- resonance
5. E- are free to move all around the ring

Aromatic Nonmenclature:


1. A benzene molecule is given a special diagram to show its unique bond structure
2. Benzene can be a parent chain or side chain "phenyl"

ex:  pentamethyl benzene