Why di tert-butyl ether cannot be prepared by Williamson synthesis ?

Explanation

To understand why di-tert-butyl ether cannot be prepared by Williamson synthesis, we need to analyze the mechanism of the Williamson synthesis and the structural features of di-tert-butyl ether.

### Step-by-Step Solution:

1. **Understanding Williamson Synthesis**:
- The Williamson synthesis is a method for preparing ethers. It involves the reaction of an alkyl halide with an alkoxide ion (derived from an alcohol).
- The general reaction can be represented as:
\[
...