Illustrate with examples the limitations of Williamson's synthesis for the preparation of certain types of ethers.

Explanation

**Step-by-Step Solution:**

1. **Understanding Williamson's Ether Synthesis:**
- Williamson's ether synthesis is a method for preparing ethers through the reaction of an alkoxide ion with a primary alkyl halide. The mechanism involved is typically an SN2 reaction, where the alkoxide acts as a nucleophile.

2. **Example of Successful Williamson's Ether Synthesis:**
- Consider the reaction between sodium methoxide (CH3O⁻Na⁺) and methyl chloride (CH3Cl):
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