Aromatic Hydrocarbons

Hydrocarbons with 4n+2  electrons

Aromatic Hydrocarbons Compounds with an odd # of double bonds at every other carbon

Aromatic Hydrocarbons The double bonds must lie in a flat plane

Aromatic Hydrocarbons Most contain benzene rings or related systems

Aromatic Hydrocarbons All have an odor Most are pleasant

Drill: Name:

Aromatic Hydrocarbons Also called: Arenes

Aliphatic Hydrocarbons Hydrocarbons other than aromatic hydrocarbons

Benzene C C C C CC H H H H H H

Drill: Draw propylbenzene

Benzene

Draw & name a compound with 7 carbons, 1 double bond, & 1 triple bond

Draw & Name all the possible isomers for C 6 H 10

Drill: Draw: all trans-3,4,5,6,7,8- hexamethyldeca- 2,4,6,8-tetraene

Naming Arenes

Use the same rules as for cyclic compounds Special exception will follow

Naming Arenes

2,3-diethyl-1-propylbenzene

Special Exceptions Some aromatic compounds have common names

Methylbenzene Toluene

1,4-dimethylbenzene Xylene

Disubstituted Benzene Rings 2 groups attached to a benzene ring

ortho-

meta-

para-

1,4-dimethylbenzene para-xylene

____ benzene R phenyl ____

Pyr phenylpyruvate

Name: tight ves

Name: strange dude

Name: me See him

ORG CHM HW Come up with at least one strange name based on organic nomenclature

Naphthalene

Anthracene

Phenanthrene

Lab: Tomorrow Review: Tuesday Test: Wednesday

Name the compounds on the board

Name:

Draw & name all the possible isomers of C 5 H 10

Draw & name all the possible isomers of C 5 H 8

The check is in the mail Of course, I’ll love you in the morning