The amine which does not react with chlorofor | vedclass

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Question

(C) The carbylamine reaction (also known as Hoffmann isocyanide synthesis) is a test used to identify primary amines. In this reaction,a primary amine

Vedclass · Accepted Answer

$(CH_3)_3N$

Vedclass · Answer

(C) The carbylamine reaction (also known as Hoffmann isocyanide synthesis) is a test used to identify primary amines. In this reaction,a primary amine reacts with chloroform $(CHCl_3)$ and an ethanolic base (like $KOH$) to form an isocyanide (carbylamine),which is characterized by a foul,offensive smell.Only primary amines ($R-NH_2$ or $Ar-NH_2$) undergo this reaction.Secondary amines $(R_2NH)$ and tertiary amines $(R_3N)$ do not possess the necessary hydrogen atoms on the nitrogen to form the isocyanide intermediate and thus do not give the carbylamine test.In the given options:$CH_3-CH_2-NH_2$ is a primary amine.$C_6H_5-NH_2$ (aniline) is a primary amine.$(CH_3)_3N$ is a tertiary amine.$CH_3-CH_2-NH-CH_3$ is a secondary amine.Since both $(CH_3)_3N$ and $CH_3-CH_2-NH-CH_3$ do not react,and typically such questions look for the tertiary amine or the most substituted one,$(CH_3)_3N$ is the standard answer for this type of question.

The amine which does not react with chloroform and ethanolic potassium hydroxide is

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