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`Ph-underset(OH)underset(|)overset(Ph)overset(|)(C)-underset(OH)underset(|)overset(H)overset(|)(C)-overset(HTheta)(rarr)underset("Major")(X)` identify X.

A

`Ph-underset(OH)underset(||)(C)-underset(H)underset(|)overset(Ph)overset(|)(C)-H`

B

`Ph-underset(Ph)underset(|)overset(H)overset(|)(C)-underset(O)underset(||)(C)-H`

C

`Ph-underset(O)underset(||)(C)-underset(H)underset(|)overset(Ph)overset(|)(C)-OH`

D

`Ph-underset(H)underset(|)overset(Ph)overset(|)C-CH_(2)-OH`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze the reaction step by step. ### Step 1: Identify the starting compound The starting compound is a dihydroxy compound with two hydroxyl (OH) groups attached to a carbon chain that also has phenyl (Ph) groups. ### Step 2: Protonation of the hydroxyl group When we add H⁺ (from an acid), one of the hydroxyl groups will get protonated. The more electron-dense oxygen (the one that is attached to the phenyl group) will be protonated first. This forms a positively charged oxonium ion. ### Step 3: Leaving group formation Once the hydroxyl group is protonated, it becomes a better leaving group. Water (H₂O) will leave, resulting in the formation of a carbocation. This carbocation is stabilized by the presence of the two phenyl groups attached to it. ### Step 4: Carbocation rearrangement The carbocation formed is a di-phenyl substituted carbocation, which is relatively stable. To further stabilize this carbocation, a phenyl group can shift from its original position to the carbocation center, leading to a more stable carbocation. ### Step 5: Nucleophilic attack The oxygen atom of the remaining hydroxyl group can now donate its electrons to the carbocation, forming a new bond. This results in the formation of a compound where the oxygen is now bonded to the carbon that was previously part of the carbocation. ### Step 6: Identify the final product (X) The final product (X) formed after the rearrangement and nucleophilic attack is a compound where the oxygen is now part of a stable structure, likely an ether or an alcohol depending on the specific structure of the starting compound. ### Conclusion The major product (X) is identified based on the stability of the carbocation and the final structure formed after the reaction.
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