2-Phenylpropene on acidic hydration gives:

Options

A. 2-Phenyl-2-propanol
B. 2-Phenyl-1-propanol
C. 3-Phenyl-1-propanol
D. 1-Phenyl-2-propanol

Answer

To determine the product of the acidic hydration of 2-phenylpropene, we can follow these steps:

### Step 1: Understand the Structure of 2-Phenylpropene
2-Phenylpropene is an alkene with the following structure:
- It has a propene backbone (three carbon atoms) with a phenyl group (a benzene ring) attached to the second carbon.

### Step 2: Acidic Hydration Mechanism
In acidic hydration, the alkene reacts with water in the presence of an acid (H⁺). The first step involves the protonation of the double bond:
- The H⁺ ion from the acid can attack either of the carbons involved in the double bond, leading to the formation of a carbocation.

### Step 3: Carbocation Formation
When H⁺ attacks the carbon atom of the double bond, it can generate a carbocation:
- If H⁺ attacks the carbon adjacent to the phenyl group, it will lead to a more stable carbocation due to resonance stabilization from the phenyl ring.

### Step 4: Resonance Stabilization
The formed carbocation can be stabilized by resonance:
- The positive charge can be delocalized onto the phenyl ring, increasing the stability of the intermediate.

### Step 5: Nucleophilic Attack by Water
Once the carbocation is formed and stabilized, water (acting as a nucleophile) will attack the positively charged carbon:
- The hydroxyl group (OH) will attach to the carbon where the positive charge is located.

### Step 6: Final Product Formation
After the nucleophilic attack, the final product is formed:
- The product will have an OH group attached to the carbon that was part of the double bond, resulting in 2-phenyl-2-propanol.

### Step 7: Naming the Product
Now, we can name the product using IUPAC nomenclature:
- The compound has a propanol backbone with the hydroxyl group on the second carbon, leading to the name 2-phenyl-2-propanol.

### Final Answer
The product of the acidic hydration of 2-phenylpropene is **2-phenyl-2-propanol**.

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