Formaldehyde to n-butane

Explanation

To convert formaldehyde (HCHO) to n-butane (C4H10), we can follow these steps:

### Step 1: React Formaldehyde with Grignard Reagent
- **Reaction**: Formaldehyde reacts with a Grignard reagent, specifically methyl magnesium bromide (CH3MgBr).
- **Mechanism**: The nucleophilic carbon (C-) from the Grignard reagent attacks the carbonyl carbon of formaldehyde, leading to the formation of a magnesium alkoxide intermediate.

**Product**: The product of this reaction is 2-propanol (CH3CH2OH).

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