Benzaldehyde condenses with acetic anhydride to give cinnamic acid in presence of –

Options

A. Sodium acetate
B. Sodium chloride
C. Sodium benzoate
D. Sodium metal

Answer

To solve the question regarding the condensation of Benzaldehyde with Acetic Anhydride to give Cinnamic Acid, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants in this reaction are Benzaldehyde (C6H5CHO) and Acetic Anhydride ((CH3CO)2O).

2. **Understand the Reaction Type**:
- This reaction is a type of Perkin Reaction, which involves the condensation of an aromatic aldehyde with an acid anhydride in the presence of a base.

3. **Identify the Required Reagent**:
- The Perkin Reaction requires an alkali salt of the acid used in the anhydride. Since we are using Acetic Anhydride, the corresponding alkali salt is Sodium Acetate (CH3COONa).

4. **Write the Reaction**:
- The reaction can be represented as:
\[ \text{C6H5CHO} + \text{(CH3CO)2O} \xrightarrow{\text{NaOAc} \text{ (Sodium Acetate)}} \text{Cinnamic Acid (C6H5CH=CHCOOH)} \]

5. **Product Formation**:
- The product formed from this reaction is Cinnamic Acid, which has the structure C6H5CH=CHCOOH.

6. **Conclusion**:
- Therefore, the answer to the question is that Benzaldehyde condenses with Acetic Anhydride to give Cinnamic Acid in the presence of Sodium Acetate.

### Final Answer:
Benzaldehyde condenses with Acetic Anhydride to give Cinnamic Acid in the presence of **Sodium Acetate**.

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