In Gabriel synthesis, amine is always :

Options

A. aliphatic primary amine
B. aliphatic secondary amine
C. aromatic primary amine
D. aromatic secondary amine

Answer

To solve the question regarding the type of amine produced in Gabriel synthesis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Gabriel Synthesis**:
- Gabriel synthesis is a method used to synthesize primary amines. It involves the use of phthalimide as a starting material.

2. **Reaction with Alcoholic KOH**:
- The phthalimide reacts with alcoholic KOH to form potassium phthalimide. This step is crucial as it prepares the compound for further reactions.

3. **Alkyl Halide Reaction**:
- The potassium phthalimide then reacts with an alkyl halide (R-X), where R is an alkyl group and X is a halogen. This results in the formation of an N-alkyl phthalimide and the release of potassium halide (KX).

4. **Hydrolysis**:
- The N-alkyl phthalimide undergoes hydrolysis (reaction with water) to yield the corresponding primary amine and phthalic acid. The primary amine generated from this reaction is of the form R-NH2.

5. **Type of Amine Produced**:
- The amine produced in Gabriel synthesis is always a primary amine. Specifically, it is an aliphatic primary amine, as the reaction does not favor the formation of aromatic or secondary amines.

6. **Conclusion**:
- Therefore, in Gabriel synthesis, the amine produced is always an **aliphatic primary amine**.

### Final Answer:
In Gabriel synthesis, the amine is always an **aliphatic primary amine**.

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