Williamson synthesis is used to prepare:

Options

A. Alcohol
B. Amine
C. Ketone
D. Ether

Answer

**Step-by-Step Solution:**

1. **Understanding Williamson Synthesis**:
- Williamson synthesis is a method used in organic chemistry to prepare ethers. It involves the reaction of an alkyl halide with an alkoxide ion.

2. **Mechanism of the Reaction**:
- The reaction follows an SN2 mechanism, which is a type of nucleophilic substitution reaction. In this mechanism, the nucleophile (alkoxide ion) attacks the electrophile (alkyl halide) from the opposite side, leading to the displacement of the leaving group (halide ion).

3. **Example of Williamson Synthesis**:
- For instance, if we take sodium ethoxide (C2H5O-Na+) and react it with ethyl chloride (C2H5Cl), the alkoxide ion acts as a nucleophile and attacks the carbon attached to the chlorine in ethyl chloride. This results in the formation of diethyl ether (C2H5-O-C2H5) and sodium chloride (NaCl) as a byproduct.

4. **Conclusion**:
- Since Williamson synthesis specifically produces ethers, the correct answer to the question is that Williamson synthesis is used to prepare **ethers**.

**Final Answer**: Williamson synthesis is used to prepare **ethers**.

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