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_______________<br />

____________<br />

Cr[: Form WS11.3.2A<br />

Name<br />

ORGANIC CHEMISTRY Date<br />

Period<br />

Wa<strong>ii</strong>it Har11$<br />

A substituted hydrocarbon is a hydrocarbon with an<br />

element other than hydrogen attached somewhere along<br />

the hydrocarbon chain. It is named in a similar fashion to<br />

a hydrocarbon. This can be illustrated with alcohols as an<br />

example. The compounds pictured to the lower left are<br />

alcohols. They look like alkanes<br />

H with —OH at one end where a<br />

I hydrogen would have been. The<br />

H—C—j--OH<br />

—OH is called a functional group.<br />

H The rest of the molecule is called a<br />

H H residue (R). The general formula<br />

for alcohols is R—OH. CH3OH, the<br />

H—C—COH first alcohol pictured to the left is<br />

formed by substituting an —OH<br />

H H<br />

group for hydrogen on methane<br />

H H H<br />

I I I<br />

(CH<br />

H—C—C—C—--OH<br />

R—-OH<br />

CH3CH2CH2OH is 1-propanol.<br />

4). As a result, it is called 1-<br />

methanol. The suffix ol shows that<br />

it is an alcohol. The root met/ian<br />

comes from methane. The number<br />

1 shows the location of the —OH.<br />

The next alcohol in the series,<br />

CH3CHOH, formed from ethane,<br />

is called 1-ethanol.<br />

The alcohols and several other classes of substituted<br />

hydrocarbons are found in Table R. The root is determined<br />

by counting the number of carbons in the chain. For<br />

halides, the substitution is identified with a prefix. For the<br />

remaining substitutions, a suffix is used. (See Table R.) As<br />

with all hydrocarbons, the number and location of groups<br />

needs to be identified.<br />

<strong>ii</strong> I<strong>ii</strong><br />

H—C—C—C—H<br />

I ,2,2-trifluoropropane<br />

3<br />

1.CH3CH,CHOHCH<br />

<strong>nil</strong><br />

H—C—C—C—C—H<br />

2-butanone<br />

Table R<br />

Organic Functional Groups<br />

CIas of Funcdonal General<br />

Compound Group Formula Example<br />

—F(fluoro-) R—X<br />

halide — Cl (chioro-) (X represents CH3CHCICII<br />

(hakicarbon) — Br (bromo-) any halogen) 2-eblorepropane<br />

-I (iodo-)<br />

alcohol —OH R011<br />

ether —0— R—O—R’<br />

3<br />

2OH<br />

CH3CH,,UI<br />

1-propanol<br />

2CH3<br />

CH3OCI1<br />

methyl ethyl ether<br />

0<br />

0 0<br />

II<br />

aldehyde It II CH3CH2C—H<br />

—C—H R—C—H<br />

propanal<br />

0 0 0<br />

ketone II II<br />

—C— R—C—R’ CH3CCHCH<br />

2-pentanone<br />

2CH3<br />

0 0 0<br />

organic acid It II<br />

II<br />

—C—OH fl—C—OH<br />

propanoic acid<br />

CH.CH<br />

2C—OH<br />

0 0<br />

0<br />

II<br />

ester II II CNCHCOCH<br />

—c—o— R—c—o—ir<br />

methyl propanoate<br />

amine<br />

— N—<br />

ir<br />

CH3CYJ<br />

2<br />

2CHaNH<br />

B—N—fl” 1-propanamine<br />

0<br />

0 OR’ It<br />

amide It I II I<br />

—C—NH fl—C—NH<br />

CH3CHaCNH<br />

popanamide<br />

2<br />

Name the following compounds using the rules for naming hydrocarbons and by referring to the reading and Table<br />

R above.<br />

2. H——!!—J—H<br />

H<br />

H<br />

Continue ir


________________<br />

eitrf: Form WS 11 . 3 . 2A<br />

Naming Substituted Hydrocarbons<br />

ORGANIC CHEMISTRY Page 2<br />

3. H___J—!!—OH<br />

H<br />

2CH3<br />

4.CH3CH2CH2OCH<br />

5. CHOCH<br />

6. H_L_i4__O—_J,_H<br />

H H H<br />

0<br />

II<br />

7 CH3CH2CHCH<br />

8.CH3CH2CH2CHOHCH<br />

2CH2CH2CH3<br />

9. CH3CHO<br />

2CH,CH<br />

10.CH3CH2COOCH<br />

2CH3<br />

11. H—i—J——OH<br />

12. CC1<br />

4<br />

H<br />

H<br />

13. CF,CH,<br />

0<br />

14. HC—O—CH<br />

3<br />

2CH3<br />

15.CH3CH2OCH<br />

2CH2CH2OH<br />

16.CH3CH2CH,CH<br />

17.CH3CH,CHOHCH2CH2CH3<br />

2CH2CH2CHO<br />

18.CH3CH2CH2CH,CH<br />

2CH2CH2CH2CH3<br />

19.CH3CH,CHBrCH<br />

3<br />

2CH,CFI<br />

20.CH3CHNH<br />

© Evan P. Silberstein, 2003


to describe common reactions of organic compounds<br />

5:rajjc aci@i<br />

__<br />

triple bonds)<br />

* Definition -<br />

of hydrogen to an alkene or an<br />

alkyne (or other carbon compounds with double or<br />

\ / II<br />

/ \<br />

CC + Br<br />

2 — H-C-C-H<br />

H H HH<br />

* Addition<br />

* halogenation -<br />

* Definition = Adding two or more atoms to carbon at a<br />

* Characteristics<br />

* Examples<br />

* take place more easily than substitutions<br />

* unsaturated bonds are more reactive than saturated<br />

* results in the formation of a single product<br />

bonds and alkynes are more reactive than alkenes<br />

point of unsaturation<br />

ane + bromine —, monobromoethane + hydrogen bromide<br />

eth<br />

H—C——C—H + Br<br />

* example: halogen substitution<br />

* with insufficient oxygen —‘ CO and water<br />

* example: C2H8 + 502 3CC, + 4H20<br />

—‘ * example: 2C3H, + 702 6CC + 8H20<br />

- * Substitution<br />

with sufficient oxygen —‘ CO2 and water<br />

* Combustion -<br />

burning<br />

replacement<br />

Ill<br />

I II<br />

H H H H<br />

occurs<br />

addition<br />

* Hydrogenation<br />

H H BrBr<br />

at room temperature<br />

2 H—C—C—H + HBr<br />

of hydrogen in saturated<br />

Some reactions of hydrocarbons<br />

hydrocarbons<br />

ebrf: Form Lsll.4A Name<br />

ethylene monomer polyethylene<br />

n<br />

(<br />

* Esterification -<br />

glucose — ethanol + carbon dioxide<br />

C6H12 06 ““ > 2C2H50H + 2C0<br />

* Fermentation -<br />

2<br />

* fruit flavorings and aromas<br />

* lipids are formed by esterification of glycerol by<br />

* Polymerization -<br />

* importance:<br />

* General formula: RCOOR<br />

* Formation: ROH + RCOOH - RCOOR + H2O<br />

* produces organic salts called soaps<br />

* forms glycerol as a byproduct<br />

* Saponification -<br />

fatty acids<br />

breakdown of organic molecules<br />

during anaerobic respiration<br />

enzymatic<br />

formation<br />

hydrolysis<br />

formation<br />

H H II H H H H H<br />

II II II II<br />

HH)<br />

* the process can be repeated to form long chain<br />

* examples: vinyl plastics - polyethylene, polystyrene<br />

(--)n<br />

H\_/H<br />

* condensation polymers must have at least two<br />

monomer monomer<br />

j1 )i 11<br />

OH—C—C—OH OH—C—C—OH —- OH—C—C—O—C—C—OH<br />

* Polymer - large molecule formed from many smaller,<br />

* Condensation - joining monomers by dehydration<br />

* Addition polymerization -<br />

involves<br />

I I<br />

and triple bonds of unsaturated hydrocarbons<br />

* examples: silicones, polyesters, polyamides,<br />

of fats by bases<br />

repeating units of smaller ones<br />

repeating units or monomers<br />

synthesis<br />

polymers<br />

phenolic plastics, and nylons<br />

of esters<br />

of large molecules from<br />

functional groups<br />

opening up double<br />

dimer<br />

ORGANIC CHEMISTRY Date Period


zrf: Form Nll.4A<br />

ORGANIC REACTIONS<br />

ORGANIC<br />

CHEMISTRY<br />

Page 2<br />

Answer the questions below by circling the number of the correct response<br />

1. One of the products produced by the reaction betweenCH3COOH<br />

and CH3OH is<br />

(1)HOH<br />

(3)HCOOH<br />

(2)H2S0 4 (4)CH3CH2OH<br />

2. A fermentation reaction and a sponification reaction are similar in<br />

that they both can produce<br />

(1) an ester (3) an acid<br />

(2) an alcohol (4) a soap<br />

3. The product of a reaction between a hydrocarbon and chlorine<br />

was 1,2-dichloropropane. The hydrocarbon must have been<br />

(1)C 5H10 (3)C<br />

(2)C2H4<br />

(4)C4H8<br />

3H6<br />

4. The product of a reaction between a hydrocarbon and chlorine<br />

was 1 ,2-dichloropropane. The hydrocarbon must have been<br />

(1)C 5H10 (3)C<br />

(2)C2H4<br />

(4)C4H8<br />

3H6<br />

5. The reactionC3H6 + H2 —C3H8 is an example of<br />

(1) substitution (3) polymerization<br />

(2) addition (4) esterification<br />

6. The reactionC2H4 + H2 —‘C2H6 is an example of<br />

(1) addition (3) saponification<br />

(2) substitution (4) esterification<br />

7. A reaction between an acid and an alcohol produces an ester and<br />

(1) carbon dioxide (3) glycerol<br />

(2) water (4) ethanol<br />

06<br />

8. The fermentation ofC6H12 will produce carbon dioxide and<br />

(1) a polymer (3) an ester<br />

(2) a soap (4) an alcohol<br />

9. The reaction:C4H8 + Cl 2 —C4H8CI is an example of<br />

(1) substitution (3) polymerization<br />

(2) addition (4) fermentation<br />

2<br />

10. A reaction betweenCH3COOH and an alcohol produced water<br />

and an esterCH3COOCH Which alcohol was used in the<br />

reaction?<br />

(1) CH3OH(3)C3H7OH<br />

(2)C2H5OH(4)C4H9OH<br />

3.<br />

11. The hydrolysis of fat by a base is called<br />

(1) saponification (3) polymerization<br />

(2) esteriflcation (4) neutralization<br />

12. Which is the product of the reaction between ethene and chlorine?<br />

(1) H———Cl (3)<br />

H H H H<br />

H<br />

(2) H—I—-Cl<br />

H<br />

H<br />

(4) cl—c—cl<br />

13. Which equation represents an esterification reaction?<br />

(1)C6H12 — 2C2H50H + CO2<br />

(2)C ÷H2—’C<br />

(3)C3H8 + Cl 2 —C3H7CI + HCI<br />

(4) HCOOH + CH3OH — HCOOCH + HOH<br />

06<br />

5H10 5H12<br />

3<br />

14. In a condensation polymerization, a product always formed is<br />

(1) water (3) oxygen<br />

(2) hydrogen (4) carbon dioxide<br />

15. The organic reaction,<br />

HCOOH +CH3CH2CH2CH2OH —, HCOOCH + HOH,<br />

is an example of<br />

(1) fermentation (3) polymerization<br />

(2) esterification (4) saponification<br />

H<br />

2CH2CH2CH3<br />

16. Which compound will undergo a substitution reaction with chlorine?<br />

(1) CH4 (3)C3H6<br />

(2)C2H4<br />

(4)C4H8<br />

17. The reaction represented by the equation nC2H4 —‘ (-C2H4-)n is<br />

called<br />

(1) saponification (3) esterification<br />

(2) fermentation (4) polymerization<br />

18. Which organic reaction involves the bonding of monomers by a<br />

dehydration process?<br />

(1) substitution (3) addition polymerization<br />

(2) oxidation (4) condensation polymerization<br />

19. The reaction CH3OH + HCOOH —. HCOOCH + H20 is an<br />

example of<br />

(1) hydrogenation (3) esterification<br />

(2) polymerization (4) addition<br />

3<br />

20. The reactionC4H10 + 2—’C4H9Br + HBr is an example of<br />

(1) substitution (3) fermentation<br />

(2) addition (4) polymerization<br />

© Evan P. Silberstein, 2003


16C0<br />

________________________________<br />

car: Form WS11.4.1A<br />

Name<br />

ORGANIC CHEMISTRY Date Period<br />

Ua?.,i,i atic 1act3ir<br />

Hydrocarbons participate in a variety of chemical reactions. Some are described below.<br />

Combustion. Fossil fuels such as the gasoline used in automobiles or the propane used in gas barbecues are<br />

hydrocarbons. When they burn, they release carbon dioxide and water. (CJH 8 + 502 —p 3C0 2 +4H20). Of course,<br />

when there is insufficient oxygen, as in an automobile engine, the carbon does not oxidize completely, and carbon<br />

monoxide and water forms. (2C 8H18 +<br />

—<br />

1702 + 18H 20). That is why automobile exhaust contains carbon<br />

monoxide.<br />

H H<br />

Substitution. Saturated hydrocarbons have all their bonding<br />

sites filled with hydrogen. The only way to attach any other<br />

elements to the carbon chain of a saturated hydrocarbon is to I I<br />

H<br />

replace the hydrogen. The replacement of the hydrogen with<br />

another element is called substitution. The diagram to the right<br />

shows halogen substitution.<br />

Addition. When there is a point of unsaturation, it is possible to<br />

add elements to the hydrocarbon chain at that point without<br />

removing any hydrogens. This is called addition. Unsaturated<br />

bonds are more reactive than saturated bonds and alkynes are even<br />

more reactive than alkenes, so additon of halogens occurs at room<br />

temperature. Addition of hydrogen to an alkene or an alkyne (or<br />

other carbon compounds with double or triple bonds) is called<br />

hydrogenation. It is the processed used to make margarine from vegetable_oil.<br />

Fermentation. Beverage alcohol is formed by yeast. It forms as a<br />

result of the enzymatic breakdown of organic molecules during<br />

anaerobic respiration. It is called fermentation.<br />

Esterification. Esterification is the formation of esters (RCOOR).<br />

Esters form from a reaction between an organic acid and an alcohol.<br />

The alcohol and acid join by dehydration synthesis. The reaction looks<br />

similar to an acid base neutralization. Esters are responsible for fn<strong>ii</strong>t<br />

flavorings and aromas of flowers.<br />

They are synthesized as artificial<br />

flavors. Lipids (fats and oils) are<br />

formed by esterification of glycerol<br />

(1,2,3-propanetriol) by fatty acids<br />

(long chain organic acids)<br />

H—C— OH H —C—(CH,)a---—CH<br />

Saponification. Saponification is the<br />

H—C— OH H —C—(CH 2)——cH<br />

hydrolysis of fats by bases. When<br />

sodium hydroxide reacts with a fat it<br />

produces organic salts called soaps<br />

plus glycerol as a byproduct. The<br />

reaction looks much like the reverse<br />

of the formation of the fat, except<br />

that the fatty acid becomes a sodium<br />

H—C— OH<br />

H<br />

H —C—(CH,)——CH<br />

salt [NaCH3(CH 2)C00].<br />

H<br />

ethane + bromine —1-bromoethane + hydrogen bromide<br />

ethene + bromine —* 1,2 -dibromoethane<br />

glucose<br />

r H 0 H 0<br />

2C2H50H + 2CO<br />

ethanol + carbon dioxide<br />

Alcohol + Acid — Ester + Water<br />

2)——CH<br />

3<br />

3 H—c——--O—c—(CH<br />

0 0<br />

2)——CH<br />

3 H—C——--O—C—(CH<br />

0 0<br />

2<br />

3 +3H,O<br />

2)----CH<br />

3<br />

3 H—,———O—C—(CH<br />

1ycero1 + 3 Fatty acids Lipid + 3H20<br />

Continue<br />

Formation of fat by esterification<br />

H


large molecules from repeating units of smaller<br />

Polymerization. Polymerization is the formation of<br />

ORGANIC CHEMISTRY Page 2<br />

4<br />

__________________________________________<br />

_____________________<br />

© Evan P. Silberstein, 2003<br />

is this?<br />

tetrafluoroethene. Then show the result of the reaction using structural formulas. What type ofpolymerization<br />

6. Teflon, a common non-stick cooking surface, is a polymer of tetrafluoroethene. Draw a structural formula of<br />

5. What is the process ofjoining many small molecules into larger molecules is called?<br />

4. How is soap made?<br />

will addition occur?<br />

2. A hydrocarbon reacts with fluorine. Under which conditions will substitution occur, and under which conditions<br />

1. What forms from the complete combustion of a hydrocarbon?<br />

Answer the questions below based on the reading above and on your knowledge of chemistry.<br />

many smaller, repeating units or monomers. Polymerization by condensation<br />

—<br />

Polymers can form by condensation<br />

monomers by dehydration synthesis. Condensation<br />

polymers must have at least two functional groups. The<br />

process can be repeated to form long chain polymers.<br />

Examples include silicones, polyesters, polyamides,<br />

hydrocarbons. Examples<br />

phenolic plastics, and nylons. Addition polymerization<br />

involves opening up double and triple bonds ofunsaturated<br />

include vinyl plastics -<br />

polyethylene and polystyrene. Addition polymedzation<br />

3. What is butylpentanoate? How does it form? ______________________________________________<br />

c=cziHn<br />

ones. A polymer is a large molecule formed from ________________________________________________<br />

r[: Form WS 11 -<br />

. 1A Understanding Organic Reactions<br />

joining

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