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Identify the option which represents the...

Identify the option which represents the correct products of the following reaction.
`Ph-CH=O+CH_3CH=Ooverset(Dil NaOH)to `(Aldols)

A

`Ph-undersetunderset(OH)(|)CH-CH_2-CH=O`

B

`CH_3-undersetunderset(OH)(|)CH-CH_2-CHO`

C

`CH_3-undersetunderset(OH)(|)CH-undersetunderset(Ph)(|)C=O`

D

`CH_3-undersetunderset(OH)(|)CH-undersetunderset(OH)(|)(CH)-Ph`

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AI Generated Solution

The correct Answer is:
To solve the problem, we need to identify the products of the aldol reaction between benzaldehyde (Ph-CHO) and acetaldehyde (CH3CHO) in the presence of dilute NaOH. ### Step-by-Step Solution: 1. **Identify the Reactants:** The reactants are: - Benzaldehyde (Ph-CHO) - Acetaldehyde (CH3CHO) 2. **Understand the Aldol Reaction:** The aldol reaction involves the formation of β-hydroxy aldehydes or ketones through the reaction of two carbonyl compounds in the presence of a base. 3. **Formation of Enolate Ion:** In the presence of dilute NaOH, acetaldehyde (CH3CHO) can form an enolate ion. The base abstracts a hydrogen atom from the alpha carbon of acetaldehyde, resulting in the enolate ion: \[ CH3CHO \xrightarrow{NaOH} CH2=CHO^{-} \] 4. **Nucleophilic Attack:** The enolate ion then acts as a nucleophile and attacks the carbonyl carbon of benzaldehyde (Ph-CHO): \[ CH2=CHO^{-} + Ph-CHO \rightarrow Ph-CH(OH)-CH2-CHO \] 5. **Formation of Aldol Product:** The product formed is a β-hydroxy aldehyde, specifically: \[ Ph-CH(OH)-CH2-CHO \] 6. **Dehydration (if applicable):** Under the reaction conditions, the aldol product can undergo dehydration to form an α,β-unsaturated aldehyde. However, since the question asks for the products of the reaction, we will consider the aldol product as the main product: \[ Ph-CH=CH-CHO \] 7. **Identifying the Correct Option:** Based on the products formed, we can compare with the options provided. The correct products of the reaction are represented by: - Option B: Ph-CH(OH)-CH2-CHO (aldol product) - Option A: Ph-CH=CH-CHO (dehydrated product) ### Final Answer: The correct products of the reaction are represented by both Option A and Option B.

To solve the problem, we need to identify the products of the aldol reaction between benzaldehyde (Ph-CHO) and acetaldehyde (CH3CHO) in the presence of dilute NaOH. ### Step-by-Step Solution: 1. **Identify the Reactants:** The reactants are: - Benzaldehyde (Ph-CHO) - Acetaldehyde (CH3CHO) ...
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