Aliphatic Compounds Containing Nitrogen - Result Question 5
####5. Which of the following amines can be prepared by Gabriel phthalimide reaction?
(2019 Main, 8 April I)
(a)
(b) triethylamine
(c)
(d) neo -pentylamine
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Answer:
Correct Answer: 5. (a)
Solution:
- n-butylamine
can be prepared by Gabriel phthalimide reaction. This method produces only primary amines without the traces of secondary or tertiary amines. In this method, phthalimide is treated with ethanolic , it forms potassium salt of phthalimide which on heating with alkyl halide followed by alkaline hydrolysis forms corresponding primary amines.
Triethylamine,