1.0 Organic: Aromatic Chemistry Flashcards

1
Q

Naming benzene molecules.
-Amine -alkene -alcohols -acid

A

Phenylamine
Phenylethene
Phenol
Benzoic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of reaction benzene goes through?

A

Electrophilic substitution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Benzene bonding.(3)

A

1)each C has 3 covalent bonds
2)spare e- in p orbital overlap above and below
3)delocalisation of e- in pi cloud

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Benzene shape(3)

A

1)planar
2)hexagon 120• bond angle
3) C—C bond equal in lenght

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Benzene stability.(3)

A

1)cyclohexatriene expect ^H = -360 kJ mol-1
2) benzene is H is less exothermic by 150
3)benzene is more stable due to delocalisation of e- in p orbital

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Benzene ring.(2)

A

1)area of high electron density
2)react with electrophiles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

1.Electrophilic substitution/ Nitration
-reagents -conditions -products

A

1.conc H2SO4 and conc HNO3
2.acid catalyst
3.nitrobenzene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Write an equation to show how the electrophile is generated .(2)

A

H2SO4 + HNO3&raquo_space; +NO2 + HSO4- + H20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Write an equation to show how the catalyst is regenerated.(2)

A

HSO4- + H+&raquo_space; H2SO4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Outline mechanism.(5)

A

1.arrow from benzene ring to +NO2
2. Half ring POSITIVE forms
3. Arrow from H to POSITIVE half ring
4. attached to NO2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Overall equation for nitration.

A

Benzene + HNO3 > nitrobenzene + h20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
  1. Electrophilic substitution/ Acylation
    Reagents conditions products
A

1.(CH3)COCl / ethanoyl
2. Catalyst AlCl3
3. Phenylethanone / benzeneketone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

2.1 - State the reactive intermediate /electrophile

A

-CH+CO

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

2.2 write an equation to show how the catalyst is regenerated.(2)

A

AlCl4- + H+&raquo_space; AlCl3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

2.4 overall equation of acylation

A

Benzene + acyl chloride&raquo_space; phenylethanone + HCl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly