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

+ +