Aromatic Hydrocarbons. Hydrocarbons with 4n+2 electrons.
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Transcript of Aromatic Hydrocarbons. Hydrocarbons with 4n+2 electrons.
Aromatic Hydrocarbons
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
BenzeneC
C
C
C
C C
HH
HH
H H
Benzene
Drill: Draw propylbenzene
Benzene
Draw & name a compound with 7 carbons, 1 double
bond, & 1 triple bond
Draw & Name all the possible
isomers for C6H10
Drill: Draw:all trans-3,4,5,6,7,8-hexamethyldeca-2,4,6,8-tetraene
Naming Arenes
Naming Arenes•Use the same rules as for cyclic compounds
•Special exception will follow
Naming Arenes
1 2
3
45
6
2,3-diethyl-1-propylbenzene
Special Exceptions•Some aromatic compounds have common names
Methylbenzene
Toluene
1,4-dimethylbenzene
Xylene
Disubstituted Benzene Rings2 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 Seehim
ORG CHM HW•Come up with at least one strange name based on organic nomenclature
Naphthalene
Anthracene
Phenanthrene
Lab: TomorrowReview: TuesdayTest: Wednesday
Name the compounds on
the board
Name:
Draw & name all the possible
isomers of C5H10
Draw & name all the possible
isomers of C5H8
The checkis in themail
Of course, I’ll love youin the morning