The conversion of phenylmethyl ketone (also known as acetophenone) to ethylbenzene involves the reduction of a carbonyl group to a methylene group. This is a Clemmensen reduction, which is typically carried out using reagent 2) Zn-Hg/HCl.

Here are the steps:

1. The carbonyl oxygen of the ketone is protonated by the acid in the reaction mixture.
2. The zinc amalgam (Zn-Hg) provides electrons that reduce the carbonyl carbon, removing the oxygen as water and forming a new carbon-hydrogen bond.
3. The result is ethylbenzene.

So, the correct answer is 2) Zn-Hg/HCl.

Question

The conversion of phenylmethyl ketone (also known as acetophenone) to ethylbenzene involves the reduction of a carbonyl group to a methylene group. This is a Clemmensen reduction, which is typically carried out using reagent 2) Zn-Hg/HCl.

Here are the steps:

1. The carbonyl oxygen of the ketone is protonated by the acid in the reaction mixture.
2. The zinc amalgam (Zn-Hg) provides electrons that reduce the carbonyl carbon, removing the oxygen as water and forming a new carbon-hydrogen bond.
3. The result is ethylbenzene.

So, the correct answer is 2) Zn-Hg/HCl.

Knowee AI · Accepted Answer

The conversion of phenylmethyl ketone (also known as acetophenone) to ethylbenzene involves the reduction of a carbonyl group to a methylene group. This is a Clemmensen reduction, which is typically carried out using reagent 2) Zn-Hg/HCl.

Here are the steps:

1. The carbonyl oxygen of the ketone is protonated by the acid in the reaction mixture.
2. The zinc amalgam (Zn-Hg) provides electrons that reduce the carbonyl carbon, removing the oxygen as water and forming a new carbon-hydrogen bond.
3. The result is ethylbenzene.

So, the correct answer is 2) Zn-Hg/HCl.

13. Phenylmethyl ketone can be converted into ethylbenzene in one step bywhich of the following reagents?1) LiAlH4 2) Zn-Hg/HCl 3) NaBH4 4) CH3MgI

Question

13. Phenylmethyl ketone can be converted into ethylbenzene in one step by which of the following reagents?

Solution

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