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Karnataka Board PUCPUC Science 2nd PUC Class 12

Which of the following amines can be prepared by Gabriel synthesis. (i) Isobutyl amine (ii) 2-Phenylethylamine (iii) N-methylbenzylamine (iv) Aniline

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Question

Which of the following amines can be prepared by Gabriel synthesis.

(i) Isobutyl amine

(ii) 2-Phenylethylamine

(iii) N-methylbenzylamine

(iv) Aniline

Short/Brief Note
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Solution

(i) Isobutyl amine

(ii) 2-Phenylethylamine

Explanation:

Gabriel synthesis is a method for producing primary amines. When phthalimide is treated with ethanolic potassium hydroxide, it forms a potassium salt of phthalimide,  which when heated with an alkyl halide and then alkaline hydrolyzed yields the corresponding primary amine.

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Chapter 13: Amines - Multiple Choice Questions (Type - I) [Page 188]

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NCERT Exemplar Chemistry Exemplar [English] Class 12
Chapter 13 Amines
Multiple Choice Questions (Type - I) | Q 34 | Page 188

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