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Chapter 18: 6P (page 684)

What acid chloride would be needed to prepare each of the following ketones from benzene using a Friedel–Crafts acylation?

Short Answer

Expert verified

The reactions involving the replacement of a hydrogen atom of the benzene ring with an acyl group are termed as Friedel-Crafts acylation reactions.

In the Friedel-Crafts acylation reaction, the benzene is made to react with an acyl chloride RCOClin presence of a Lewis acid catalyst.

Step by step solution

01

Friedel–Crafts acylation reaction

The reactions involving the replacement of a hydrogen atom of the benzene ring with an acyl group are termed as Friedel-Crafts acylation reactions.

In the Friedel-Crafts acylation reaction, the benzene is made to react with an acyl chloride RCOClin presence of a Lewis acid catalyst.

02

Reaction of benzene with an acyl chloride

The reaction of benzene with an acid chloride is shown below.

03

The acyl chlorides required to prepare the given ketones

Replacing the benzene ring in the given ketones with the chlorine atom gives the corresponding acyl chlorides used in the synthesis of the given ketones.

a

b

c

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Most popular questions from this chapter

Question: Use the reactions in this chapter along with those learned in Chapters 11 and 12 to synthesize each compound. You may use benzene, acetylene, two-carbon alcohols, ethylene oxide and any organic reagents.

d.

Which substituents have an electron-withdrawing and which have an electron-donating inductive effect

aCH3CH2CH2CH2-

bBr-

cCH3CH2O-

Explain why each of the following reactions will not form the given product. Then, design a synthesis of A from benzene and B from phenol C6H5OH.

Draw all products formed when m-chlorotoluene is treated with KNH2inNH3

Draw the products formed when each compound is treated withCH3CH2COCl,AlCl3
See all solutions

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