How would you convert acetylene to acetone?

Explanation

To convert acetylene (C₂H₂) to acetone (C₃H₆O), we can follow a series of steps that involve increasing the carbon chain and performing specific reactions. Here’s a step-by-step solution:

### Step 1: Convert Acetylene to Propyne
1. **React Acetylene with Sodium Amide (NaNH₂)**:
- Acetylene can be treated with sodium amide to form sodium acetylide (NaC≡C⁻).
- This step involves deprotonation of acetylene, which generates a nucleophile.

**Reaction**:
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