Whe happen when ethanal is treated with methyl magnesium iodide followed by hydrolysis?

Explanation

To solve the question of what happens when ethanal (acetaldehyde) is treated with methyl magnesium iodide followed by hydrolysis, we can break down the reaction step by step.

### Step 1: Identify the Reactants
- Ethanal (acetaldehyde) has the chemical formula CH3CHO.
- Methyl magnesium iodide (CH3MgI) is a Grignard reagent.

### Step 2: Reaction of Ethanal with Methyl Magnesium Iodide
- When ethanal reacts with methyl magnesium iodide, the nucleophilic carbon of the Grignard reagent (CH3-) attacks the electrophilic carbon of the carbonyl group (C=O) in ethanal.
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