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Question
Which of the following is the most reactive in Friedel craft acylation reaction?
Which of the following is the most reactive in Friedel craft acylation reaction?
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Solution
The correct option is B
Friedel Craft reaction is an electrophilic substitution reaction.
In this reaction, the AlCl3 catalyst reacts with an acyl group and converts it into electrophile.
This electrophile attacks electrion-rich para and meta position in the ring and forms the corresponding product.
In the given compounds, Aniline does not undergo Friedel-Crafts acylation reaction as AlCl3 directly reacts with −NH2 group of the aniline and forms an insoluble complex.
Now between the Chlorobenzene, Benzene, and Toluene, the order of reactivity towards electrophilic substitution reaction is:
Toluene > > Benzene > Chlorobenzene
This is because the -Cl group somewhat weakly deactivate the benzene ring as it is an electron-withdrawing group.
Thus, the group which is more reactive towards the Friedel Craft acylation reaction is: Toluene
Hence the correct option is B.
Friedel Craft reaction is an electrophilic substitution reaction.
In this reaction, the AlCl3 catalyst reacts with an acyl group and converts it into electrophile.
This electrophile attacks electrion-rich para and meta position in the ring and forms the corresponding product.
In the given compounds, Aniline does not undergo Friedel-Crafts acylation reaction as AlCl3 directly reacts with −NH2 group of the aniline and forms an insoluble complex.
Now between the Chlorobenzene, Benzene, and Toluene, the order of reactivity towards electrophilic substitution reaction is:
Toluene > > Benzene > Chlorobenzene
This is because the -Cl group somewhat weakly deactivate the benzene ring as it is an electron-withdrawing group.
Thus, the group which is more reactive towards the Friedel Craft acylation reaction is: Toluene
Hence the correct option is B.
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