5/5 Notes – Cyclic Organic Compounds
C. Ringed Hydrocarbons (Cyclic)
1. Def – hydrocarbon that is in a ring (or is continuous)
2. Naming
a. Add the prefix cyclo- to the longest chain
b. Longest chain has to be the ring
c. Name all substituents as usual
3. Examples
Write out the following structures
1-cyclohexene

2,4-dimethyl-1-cyclopentanol

Name the following

3-iodo-1,2-cyclobutadiol 2,
4, 6-trichlorocyclohexanal
OH are alcohols and should
be named 1st Aldehydes should be named first
We have a ring à cyclo- Ring
à cyclo-
4 carbon chain à but- 6 Carbons à hex-
2 alcohols à -diol Aldehyde à -al