Which of the following does not undergo ...

Which of the following does not undergo the Friedel-Crafts alkylation reaction?

A

Aniline

B

Nitrobenzene

C

Anisole

D

Both (1) and (2)

Text Solution

Verified by Experts

The correct Answer is:

4

Aniline forms a complex with `AIX_(3)` through lone pair on nitrogen.
`C_(6)H_(5)overset(delta)(N)H_(2)..overset(delta-)(Al)X_(3)`
Nitro group is a strong deactivator, Thus the `e^(-)` density in nitrobenzne is to less to be attacked by an electrophile.

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Knowledge Check

A benzene ring deactivated by strong & moderate electron withdrawing groups such a molecule is not electron rich enough to under go friedel-craft's reaction Friedel craft reaction also does not occur with NH_(2) group as it react with AlCl_(3) and produce deactivating group. Q. Which of the following compound undergoes Friedel-crafts alkylation reaction

A

B

C

D

A benzene ring deactived by strong and moderate electrons withdrawing group that is, any meta directing group, is not electron rich enough to undergoes Friedel-Carfts reactions. Friedel- Crafts reaction also do not occur with NH_(2) group as it react with AlCl_(3) and produce deactivating group . Which of the following compounds undergo Friedel-Crafts alkylation reaction ?

A

B

C

D

Which of the following will undergo Friedel-Crafts alkylation reaction?

A

I, II and IV

B

I and III

C

II and IV

D

I and II

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