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  4. The reaction, R- NH2 +CHCl3 + 3KOH xrightarrow textHeat R-NC +3KCl +3H2O is known as

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Q. The reaction, $ R- NH_2 +CHCl_3 + 3KOH \xrightarrow {\text{Heat}} R-NC +3KCl +3H_2O $
is known as

AMUAMU 2015Amines

Solution:

The given reaction is known as carbylamine reaction.
$RNH_2 + CHCl_3 + 3KOH \xrightarrow{\Delta} R - NC + 3 KCl + 3H_2O$
It is a reaction for chemical test of primary amines.
In this reaction, the analyte is heated with alcohol, potassium hydroxide and chloroform. If primary amine is present, the isocyanide is formed.