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Level 1-Alkanes   Level 2-Alkenes  Level 3 Alkynes  Level 4 Benzenes   Level 5 Dienes  Level 6 Trienes   Level 7 Cyclic Compounds

 

Level 5-Naming Dienes

 

Dienes- Organic compound containing 2  separate carbon to carbon double bonds C=C

The rule for naming is they all end with "-diene".

The general formula is CnH2n-2, n is the number of carbons is used to determine the number of hydrogen atoms. Example n=4, so H=(2(4)-2)=6

C4H6

Dienes are ISOMERS of Alkynes (same general formula)

Naming Compounds- Again, ignore all the hydrogen's. We only worry about carbon atoms.

Rule #1-Name the longest chain that contains both double bonds.  End it with "diene".

Rule #2-When necessary use the lowest numbers to give the locations of both double bonds.

C4H6 1,3-butadiene
C5H8 1,3-pentadiene
C5H8 1,4-pentadiene

Level 1-Alkanes   Level 2-Alkenes  Level 3 Alkynes  Level 4 Benzenes   Level 5 Dienes  Level 6 Trienes   Level 7 Cyclic Compounds

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