Conversion of isobutene into isobutyl alcohol can be possible with

Options

A. `HOH//H^o+`
B. `BH_3` followed by `H_2O_2//barOH`
C. Conc. `H_2SO_4` followed by HOH
D. All of these

Answer

To convert isobutene into isobutyl alcohol, we can analyze the options provided and determine the correct reagent for the reaction. Here’s a step-by-step solution:

### Step 1: Identify the structure of isobutene and isobutyl alcohol
- **Isobutene** (C4H8) is a branched alkene with the structure:
```
CH3
|
CH2=C
|
CH3
```
- **Isobutyl alcohol** (C4H10O) is a branched alcohol with the structure:
```
CH3
|
CH2-CH(OH)-CH3
```

### Step 2: Analyze the reaction conditions
To convert isobutene to isobutyl alcohol, we need to consider the addition reactions of alkenes. The addition of water (hydration) to alkenes can occur via two main pathways:
1. **Markovnikov addition**: where the hydroxyl (OH) group attaches to the more substituted carbon (the carbon with more hydrogens).
2. **Anti-Markovnikov addition**: where the hydroxyl (OH) group attaches to the less substituted carbon.

### Step 3: Evaluate the options
- **Option A**: Water in the presence of H+
- This method follows Markovnikov's rule, leading to the formation of isobutyl alcohol at the more substituted carbon.

- **Option B**: BH3 followed by H2O2 and OH-
- This method follows Anti-Markovnikov's rule, leading to the formation of isobutyl alcohol at the less substituted carbon. This is the correct pathway for our desired product.

- **Option C**: Concentrated H2SO4 followed by water
- This method also follows Markovnikov's rule, leading to the formation of isobutyl alcohol at the more substituted carbon.

- **Option D**: Not specified in the transcript, but we can assume it is not relevant for the conversion based on the provided information.

### Step 4: Conclusion
After evaluating the options, we find that **Option B** (BH3 followed by H2O2 and OH-) is the correct choice for converting isobutene into isobutyl alcohol.

### Final Answer
**The conversion of isobutene into isobutyl alcohol can be achieved with Option B: BH3 followed by H2O2 and OH-.**

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