Which of the following compound can be resolved into enatiomers ?

Options

A.
B.
C.
D.

Answer

To determine which of the given compounds can be resolved into enantiomers, we need to identify whether any of the compounds are chiral. A compound is chiral if it has a chiral center (usually a carbon atom bonded to four different groups) and does not have a plane of symmetry.

Let's analyze the compounds step by step:

### Step 1: Identify Chiral Centers
1. **First Compound**:
- The first compound has a nitrogen atom with a lone pair of electrons.
- Even though nitrogen can be a chiral center, the presence of a lone pair allows for inversion, leading to a racemic mixture.
- **Conclusion**: This compound cannot be resolved into enantiomers.

2. **Second Compound**:
- The second compound has a carbon atom bonded to four different groups.
- Assigning R/S configuration shows that it has a specific stereochemistry.
- Taking the mirror image will yield a non-superimposable structure.
- **Conclusion**: This compound can be resolved into enantiomers.

3. **Third Compound**:
- Analyze the structure for chiral centers.
- If it has a carbon bonded to four different groups, it can be chiral.
- If it has a plane of symmetry, it cannot be chiral.
- **Conclusion**: Check if it has a chiral center.

4. **Fourth Compound**:
- Similar to the third compound, check for chiral centers and symmetry.
- If it has a chiral center and lacks symmetry, it can be resolved into enantiomers.
- **Conclusion**: Check if it has a chiral center.

### Step 2: Final Decision
- After analyzing all compounds, we conclude that only the second compound can be resolved into enantiomers due to its chiral center and the absence of symmetry.

### Summary of Findings
- **First Compound**: Cannot be resolved into enantiomers (due to inversion).
- **Second Compound**: Can be resolved into enantiomers (chiral).
- **Third Compound**: Needs further analysis (check for chirality).
- **Fourth Compound**: Needs further analysis (check for chirality).

### Final Answer
The second compound can be resolved into enantiomers.