Show how cinnamaldehyde is prepared by crossed aldol condensation ?

Explanation

To prepare cinnamaldehyde (C6H5CH=CHCHO) through crossed aldol condensation, we will follow a systematic approach. Here’s a step-by-step solution:

### Step 1: Identify the Reactants
We need two carbonyl compounds for crossed aldol condensation. For this reaction, we will use:
1. Benzaldehyde (C6H5CHO) - which does not have alpha-hydrogens.
2. Acetaldehyde (CH3CHO) - which has alpha-hydrogens.

### Step 2: Deprotonation of Acetaldehyde
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