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Organic Chemistry > Chapter 17 > Flashcards

Chapter 17 Flashcards

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0
Q

Bro inaction of a benzene includes

A

Aluminum bromide AlBr2
Or Farers bromide FeBr2
And
Br2

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1
Q

Addition to a benzene ring always consists of

A

A strong nucleophile and a benzene ring

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2
Q

What molecule must be used when Iodinating benzene

A

Nitric acid. HNO3

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3
Q

In what reaction does sulfuric and nitric acid make a nironium catin that ads to a benzene

A

Nitration of benzene

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4
Q

Sulfonate on of benzene ads what group to benzene

A

HSO3 cation

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5
Q

What are the reactants to sulfonate a benzene

A

Concentrated sulfuric acid ( fuming ) H2SO4
Sulfur trioxide (SO3)
Benzene

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6
Q

The main purpose of friedel craft alkylation is to create

A

Alkyl benzenes

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7
Q

Friedel craft acylation creates

A

Acylbenzenes

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8
Q

What is the purpose of the strong Lewis acid in the fridel craft reactions

A

Creates a poor complex with the alkyl halide so the benzene can attack the positive carbon

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9
Q

What are the reactants for a friedel craft alkylation

A

Alkylehalide

Strong lewis acid of the same halide

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10
Q

The only difference between acylation and alkylation of benzene is

A

An acylhalide is used I place of an alkyl halide

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11
Q

When using friedel craft alkylation the a carbocation is created
What will this cause that can change the expected result

A

Rearrangement

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12
Q

Freidel craft reactions will not work if what is already present on the benzene

A

Deactivatiion group stronger than a halogen

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13
Q

A group attached to a benzene that allowed them compound to react faster than benzene by its self is known as an

A

Activating group

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14
Q

A group attached to a benzene that makes the compound react slower than a benzene is known as a

A

Deactivating group

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15
Q

Activating groups will give reactants with what configuration

A

Ortho and para

16
Q

Deactivating groups will give what formation

A

Meta

17
Q

What deactivating group is an exception that will give ortho and para

A

Halogens

18
Q

What type of group gives the best resonance structure when attached to the ortho and para

A

Activating

19
Q

What group gives very unstable resonance structures when another group is reacted at the ortho and pare

A

Deactivating

20
Q

When there are two preexisting groups on a benzene what position will a new reactant almost never be placed

A

Ortho between the two preexisting groups

21
Q

Why will a new group not react to the ortho position between two groups

A

Steric hindrance

22
Q

What reaction will reduce acyle benzenes with
Amalgamated zinc ( Zn(Hg))
Aqueous HCl

A

Clemmonsen reduction

23
Q

If a friedel craft alkylation reaction fails to creat a product due to rearrangement what two reactions can be done to reach the wanted product

A

Friedel craft acylation. Then a Clemmenson reduction

24
Q

Clemmenson reductions end product is an

A

Alkylbenzene

25
Q

Gatterman-Koch formulation produces what end product

A

Benzaldehyde

26
Q

Gatheran -Koch formulation can be spit into three reactions. What are the reactants and product of the first and second

A

CO + HCl =. Chloroaldehyde

Chloroaldehyde + AlCl3 /Cucl = Carbonyl cation

27
Q

The third part of the Gatterman -Koch reaction is

A

The addition of the carbonyl cation to the benzene

28
Q

All of the reactants for the Gatterman -Koch reaction can be placed together then added to benzen. What are all the reactants

A

CO.
HCl
Aluminum chloride (AlCl3)
Copper chloride (CuCl)

Benzene

29
Q

Side chain oxidation oxidizes all alkenes to what

A

Carboxilic acids

30
Q

What groups will not oxidize in side chain oxidation

A

Nitrite (NO3)
SO3H
Carboxylic acid

31
Q

What oxidizes can be used for side chain oxidation

A

KMnO4 , -OH, H2O at 100 C
Or
Chromic acid (hot)

32
Q

Side chain allegation is what type of reaction

A

Free radical halogenation

33
Q

Halogens will always go to what carbon in free radical halogenation

A

Benzilic

Organic Chemistry (8 decks)

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