Halogenation Addition Reaction
Drill: Name:
SH I
F
OH
Addition Reactions
•Reactions in which more atoms are
added to an alkene or alkyne
Halogenation
•Reactions in which halogens are added
to an alkene or alkyne
Halogens•Elements from
column 7A or column 17
•F, Cl, Br, & I
Halogenation
C=C + X-Y -C-C-
X Y
Halogenation
C=C + IBr H-C-C-H
I BrH
H
H
HH H
Predict Product
C=C + ICl
H
H
CH3
H
Hydrohalogenation
•Reactions in which hydrogenhalides are added to an alkene or
alkyne
Hydrohalogenation
C=C + H-X -C-C-
H X
Hydrohalogenation
C=C + HClH-C-C-H
H ClH
H
H
H H H
Markovnikov’s Rule
•The major products get the “H” on the
atom in the DB that already has more “Hs”
Halogen Rxns
•Predict the products for each of the
examples on the board
Substitution Rxns
•Reactions in which a halogen replaces a
hydrogen on an arene
H
+ X-X
X
+ H-X
cat
H
+ Br-Br
Br
+ H-Br
AlCl3
Other Addition Reactions
Hydrogenation
C=C + H2 H-C-C-H
H HH
H
H
HH H
Pt
Hydrogenation
+ H-HPd
Drill:Name reactants & predict
& name products:
+ HCl
Monomer
•Molecules that can combine in repeating
units creating a polymer
Polymer
•Large molecules made up of repeating units of a single molecule
Naming Polymers
•The polymer is named after the monomer:
polymonomer
Polymerization
•The act of making polymers out of
monomers
Polymerization Reactions
C=C C=C
H
H
H
H
H
H
+H
H
+ etc
H H H H(-C-C-C-C-)n H H H H
Typical Polymers
•Large molecules made up of repeating units of a single molecule
Ethene (Ethylene)
C=C
H
H
H
H
Propene (Propylene)
C=C
H
H
H
CH3
Chloroethene orVinyl chloride
C=C
H
H
H
Cl
Tetrafluoroethene
C=C
F
F
F
F
Isoprene
C=C
C=C
CH3H
H
H
H
H
Styrene
C=C
H
HH
+ +