In what manner the following transformation might be carried out (in not more than six steps) ? 'Benzaldehyde to cyanobenzene'

Explanation

To convert benzaldehyde to cyanobenzene in not more than six steps, we can follow the outlined synthetic pathway. Here’s a step-by-step breakdown of the process:

### Step-by-Step Solution:

1. **Oxidation of Benzaldehyde to Benzoic Acid:**
- **Reagents:** Use potassium permanganate (KMnO4) as the oxidizing agent.
- **Reaction:** Benzaldehyde (C6H5CHO) is oxidized to benzoic acid (C6H5COOH).
- **Equation:** C6H5CHO + [O] → C6H5COOH
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