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Chapter 4: Problem 105

Bromobenzene is treated with magnesium in dry ether to form compound \(x\) which is then treated with ethanol to form compound \(\mathrm{y}\). The compound \(\mathrm{y}\) is (a) Benzene (b) Phenol (c) Ethylbenzene (d) ethyl phenyl ether

Short Answer

Expert verified
Answer: The final product, compound y, is ethyl phenyl ether.

Step by step solution

01

Bromobenzene reacting with magnesium in dry ether

In this step, bromobenzene reacts with magnesium in the presence of dry ether to form a Grignard reagent. The magnesium atom inserts itself between the carbon and bromine atoms of the bromobenzene molecule, creating phenylmagnesium bromide (compound x). The reaction can be written as follows: C₆H₅Br + Mg → C₆H₅MgBr
02

Phenylmagnesium bromide (Compound x) reacting with ethanol

In this step, phenylmagnesium bromide (compound x) reacts with ethanol. The oxygen of the alcohol will attack the magnesium atom, and the carbon-magnesium bond will break, with a new bond formed between the carbon atom and the hydrogen atom from ethanol. The final product, compound y, is ethyl phenyl ether. This reaction can be written as follows: C₆H₅MgBr + C₂H₅OH → C₆H₅O(C₂H₅) + MgBrOH
03

Choosing the correct option

Now that we know the structure of compound y, we can evaluate the given options: (a) Benzene: Incorrect, as the structure is different. (b) Phenol: Incorrect, as the structure is different. (c) Ethylbenzene: Incorrect, as the structure is different. (d) Ethyl phenyl ether: Correct, as this is the structure of compound y. So the correct answer is (d) ethyl phenyl ether.

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Most popular questions from this chapter

The major product of dehydration of hex-4-en-2-ol would be (a) 1,4 -hexadiene (b) 2,4 -hexadiene (c) 1,5 -hexadiene (d) 2,3 -hexadiene

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