On heating benzyl amine with chloroform and ethanolic KOH, product obtained is

Options

A. benzyl alcohol
B. benzaldehyde
C. benzonitrile
D. benzyl isocyanide.

Explanation

To solve the question, "On heating benzyl amine with chloroform and ethanolic KOH, what product is obtained?", we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are:
- Benzyl amine (C6H5CH2NH2)
- Chloroform (CHCl3)
- Ethanolic potassium hydroxide (KOH in ethanol)

### Step 2: Recognize the Type of Reaction
The reaction between a primary amine (like benzyl amine) and chloroform in the presence of a strong base (like ethanolic KOH) is known as the **Carbylamine reaction**. This reaction is specific to primary amines.

### Step 3: Understand the Mechanism
In the Carbylamine reaction, the primary amine reacts with chloroform and a strong base to form an isocyanide. The mechanism involves:
1. The base deprotonates the amine, forming an amine anion.
2. The amine anion then reacts with chloroform to form an intermediate.
3. This intermediate rearranges to produce the isocyanide.

### Step 4: Write the Product
The product formed from the reaction of benzyl amine with chloroform and ethanolic KOH is **benzyl isocyanide** (C6H5CH2N=C=O). The structure of benzyl isocyanide consists of a benzene ring attached to a CH2 group, which is further connected to an isocyanide functional group (–N=C=O).

### Step 5: Conclusion
Thus, the final product obtained from the reaction of benzyl amine with chloroform and ethanolic KOH is **benzyl isocyanide**.

### Final Answer:
Benzyl isocyanide (C6H5CH2N=C=O)

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