Drill: Name the following + 2 isomers

F F

OH

Name:

SH I

F

O

H

Addition Reactions

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

Drill: Draw the reactants, then

predict, draw, & name the products

when Cl2 is added to trans-2-pentene:

CH3

CHCH

CH2

CH3

ClCl

CH3

CHCH

CH2

CH3

ClCl

CH3

CHCH

CH2

CH3

ClCl

CH3

CHCH

CH2

CH3

Cl

Cl

Pentyl-2,3-dichloride

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”

Predict & Name Products when HF is

added to:

Halogen Rxns: Predict the products for each of

the examples:

2-methyl-2-butene + HIPropene + HF

Organic HW•Draw the reactant, then predict & name the major & minor products when HCl is added to 1-pentene.

Drill:Draw the reactant, then

predict & name their products when excess

HCl is added to1-pentyne

Hydration•An addition reaction where water is added to an alkene or alkyne

HydrationC=C + H2O

C-C

H OH

H+

Predict & Name Reactants & Products

C=C

H

H

H

H

+ H2OHOClHeat

Ethanol

C C

H OH

HH

H H

Predict & Name Reactants & Products

C=C

CH3

HH

H

+ H2Oacid

heat

C C

H OH Major Product

CH3H

H HC C

H H

CH3H

HO HMinor Product

Hydrogenation•An addition reaction where hydrogen is added to an alkene or alkyne

Hydrogenation

C=C + H2 H-C-C-H

H HH

H

H

H H H

cat

Predict the Product

+ H-H

Pd

Name:

Organic HW•Draw the reactant, then predict & name the major & minor products when HOH in acid is added to 1-pentene.

Drill: Draw the organic reactants, & draw &

name the major products when 3 equivalences of

HF is added topenta-1-ene-3-yne

Collect HW

Substitution Reactions

•Reactions that look as if they should be addition, but substitution occurs instead.

Substitution Rxns

•Reactions in which a halogen replaces a

hydrogen on an arene (benzene ring)

H

X-X cat

X

+ HX

H

Br-Br cat

Br

+ HBr

Hydrocarbon polymerization is the foundation of

the plastics industry.

Monomer•Molecules that can combine in repeating

units creating a polymer

Polymer•Large molecules made

up of repeating units of single molecules

Naming Polymers•The polymer is named

after the monomer from which it’s made:

polymonomer

Polymerization•The act of making

polymers out of monomers

Polymerization Reactions

C

C

C

C

C

C

Catalyst is added to start rxn, DB breaks & connects to nearest C & the process continues

C

C

C

C

C

C

or (-C C-)n

Typical Monomers

•Single molecules in which repeating units make up molecules or

polymers

Ethene (Ethylene)

C=C

H

H

H

H

Polyethylene

(-CH2-CH2-)n

Propene (Propylene)

C=C

H

H

H

CH3

Polypropylene

CH3

(-CH2-CH-)n

Chloroethene orVinyl chloride

C=C

H

H

H

Cl

Polyvinyl chloride (PVC)

Cl

(-CH2-CH-)n

Tetrafluoroethene

C=C

F

F

F

F

Teflon

(-CF2-CF2-)n

Isoprene

C=C

C=C

CH3H

H

H

H

H

Polymers of rubber

(-H2C-C

CH-CH2-)n

CH3

Isoprenes

Isoprenes

Rubber Polymer

Styrene

C=C

H

HH

Polystyrene

(CH-CH2-)n

+ +

+ +

Predict & Name the Product

Polycyclopropylethylene