What is the main product when benzaldehyde is treated with Grignard reagent foll

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Question: What is the main product when benzaldehyde is treated with Grignard reagent followed by hydrolysis?

Options:

Correct Answer: Benzyl alcohol

Solution:

The reaction of benzaldehyde with Grignard reagent followed by hydrolysis yields benzyl alcohol.

What is the main product when benzaldehyde is treated with Grignard reagent followed by hydrolysis?

What is the main product when benzaldehyde is treated with Grignard reagent followed by hydrolysis?

Correct Answer: Benzyl alcohol

Step 1: Start with benzaldehyde, which is a compound with a benzene ring and a formyl group (–CHO).
Step 2: Prepare a Grignard reagent, which is typically made from an alkyl or aryl halide and magnesium in dry ether. For example, phenylmagnesium bromide (C6H5MgBr) can be used.
Step 3: Add the Grignard reagent to the benzaldehyde. The Grignard reagent acts as a nucleophile and attacks the carbon atom of the carbonyl group (C=O) in benzaldehyde.
Step 4: This reaction forms a new compound called a magnesium alkoxide intermediate.
Step 5: Next, perform hydrolysis by adding water (H2O) to the reaction mixture. This step converts the magnesium alkoxide into an alcohol.
Step 6: The final product of this reaction is benzyl alcohol, which has a benzene ring attached to a –CH2OH group.

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