Question

Gabriel phthalimide synthesis is used for the preparation of

• A. tertiary amine
• B. acid synthesis
• C. primary amine
• D. secondary amine

Hint:

Gabriel phthalimide synthesis is a method for preparing primary amines from alkyl halides. It avoids the formation of secondary or tertiary amines.

Answer 1

The Correct Option is C

The Gabriel phthalimide synthesis is a method for producing primary amines. It involves reacting phthalimide with an alkyl halide, generally with a base present, and then hydrolyzing the product to obtain a primary amine.
Step 1: Overview of the Gabriel phthalimide reaction.
The reaction initiates with phthalimide acting as a nucleophile, attacking the alkyl halide to create an imidate intermediate. Subsequent hydrolysis transforms this intermediate into the target primary amine.
Step 2: Assessment of alternatives.
- Alternative 1: Tertiary amine: Incorrect; the Gabriel phthalimide synthesis does not produce tertiary amines.
- Alternative 2: Acid synthesis: The Gabriel phthalimide synthesis is not employed for acid preparation.
- Alternative 3: Primary amine: Correct. The Gabriel phthalimide synthesis is specifically designed to yield primary amines.
- Alternative 4: Secondary amine: Incorrect; secondary amines are not the outcome of this reaction.
Step 3: Determination.
Primary amines are the definitive product of Gabriel phthalimide synthesis.

Final Determination: \[\boxed{\text{The product obtained is a primary amine.}}\]