Aromatic Hydrocarbon Reactions

Question 1

characterized by the presence of the benzene ring.

Answer 1

aromatic hydrocarbons

Question 2

six-membered ring with alternating single and double bond.

Answer 2

benzene ring

Question 3

unlike the typical alkene, benzene rings are typically stable due to presence of pi electrons that undergo what

Answer 3

electron delocalization

Question 4

Aromatic compounds need to satisfy these requirements:

Answer 4

• cyclic
• alternating single and double bond or all carbons are sp2 hybridized
• planar
• follow Huckel’s rule

Question 5

state that total number of pi electrons of a aromatic ring is 4n + 2 (2, 6, 10, 14…)

Answer 5

Huckel’s rule

Question 6

happens due to the presence of fully conjugated unsaturated ring systems

Answer 6

aromatic

Question 7

the benzene is entirely this around the entire molecule

Answer 7

delocalized

Question 8

benzene has this around the ring

Answer 8

partial pi electron density

Question 9

determine if the compound is an aromatic compound

Answer 9

grade yourself accordingly

Question 10

undergo electrophilic aromatic substitution

Answer 10

aromatic compounds

Question 11

in electrophilic
aromatic substitution, this will attack
the electrophile and substitute the
electrophile for one of the H atoms

Answer 11

pi electrons

Question 12

this is retained after
electrophilic aromatic substitution

Answer 12

aromaticity

Question 13

facilitates electrophilic aromatic substitution

Answer 13

lewis acid catalyst

Question 14

enumerate the strongly activating directing groups

Answer 14

NH2
OH
OCH3
NH-C(=O)-CH3

Question 15

enumerate the weakly activating directing groups

Answer 15

CH3
C6H5
H

Question 16

Atoms or groups that make the benzene molecule more reactive by increasing the ring’s electron density

Answer 16

activating groups

Question 17

ortho para directors include

Answer 17

-H
-F
-Cl
-Br
-I

Question 18

m-directors include

Answer 18

O=C-H (aldehyde)
O=C-OCH3 (ester)
O=C-OH (carboxylic acid)
-SO3H (sulfonic acid)
-CN
-NO2
-NR3

Question 19

illustrate the nitration reaction in aromatic hydrocarbons

Answer 19

grade yourself accordingly

Question 20

illustrate the bromination of aromatic hydrocarbons

Answer 20

grade yourself accordingly

Question 21

illustrate the chlorination (Cl2) of aromatic hydrocarbons

Answer 21

grade yourself accordingly

Question 22

illustrate the sulfonation of aromatic hydrocarbons

Answer 22

grade yourself accordingly

Question 23

illustrate the alkylation (Ch3CH2Cl) of aromatic hydrocarbons

Answer 23

grade yourself accordingly

Question 24

illustrate the alkylation of Ch3CH=Cl2

Answer 24

grade yourself accordingly

Question 25

illustrate the acylation of aromatic

Answer 25

grade youself accordingly

Question 26

illustrate the deuteration of aromatic hydrocarbons

Answer 26

grade yourself accordingly