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Identify X and Y in the following H(2)...

Identify X and Y in the following
`H_(2)underset(Br)underset(|)(C)-underset(Br)underset(|)(C)H_(2)+KOH overset("alcohol")to X overset(NaNH_(2))to Y`

A

`X-CH_(3)CHBr,Y-CH_(2)=CH_(2)`

B

`X-CH_(2)OH-CH_(2)OH,Y-CH_(2)=CH_(2)`

C

`X-CH_(2)CHBr,Y-CH-=CH`

D

`X-CH-=CBr,Y-CH-=CH`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to identify the compounds X and Y in the given reaction sequence. The reaction involves a compound with two bromine substituents and a potassium hydroxide (KOH) treatment, followed by a reaction with sodium amide (NaNH₂). ### Step 1: Identify the Starting Compound The starting compound is represented as: ``` H₂C(Br)C(Br)H₂ ``` This indicates a dibrominated alkane. The structure suggests it is 2,2-dibromopropane (since there are two bromine atoms on the same carbon). ### Step 2: Reaction with KOH When 2,2-dibromopropane reacts with KOH in an alcoholic medium, it undergoes elimination to form an alkene. The elimination reaction will lead to the formation of propene (C₃H₆). So, the reaction can be summarized as: ``` 2,2-dibromopropane + KOH (alcohol) → propene (X) ``` ### Step 3: Reaction with NaNH₂ Next, propene (X) reacts with sodium amide (NaNH₂). Sodium amide is a strong base and can deprotonate the alkene to form an alkyne. In this case, propene can be converted to propyne (C₃H₄). So, the reaction can be summarized as: ``` propene (X) + NaNH₂ → propyne (Y) ``` ### Final Identification - X = Propene (C₃H₆) - Y = Propyne (C₃H₄) ### Summary of the Solution 1. The starting compound is identified as 2,2-dibromopropane. 2. Upon treatment with KOH, it forms propene (X). 3. Propene then reacts with NaNH₂ to form propyne (Y).

To solve the problem, we need to identify the compounds X and Y in the given reaction sequence. The reaction involves a compound with two bromine substituents and a potassium hydroxide (KOH) treatment, followed by a reaction with sodium amide (NaNH₂). ### Step 1: Identify the Starting Compound The starting compound is represented as: ``` H₂C(Br)C(Br)H₂ ``` This indicates a dibrominated alkane. The structure suggests it is 2,2-dibromopropane (since there are two bromine atoms on the same carbon). ...
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