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प्रश्न
The reaction of a primary amine with chloroform and ethanolic KOH is called ______.
विकल्प
Carbylamine reaction
Kolbe's reaction
Reimer-Tiemann reaction
Wurtz-Fittig reaction
उत्तर
The reaction of a primary amine with chloroform and ethanolic KOH is called Carbylamine reaction.
Explanation:
Carbylamine reaction involves the reaction of a primary amine with chloroform in presence of alcoholic KOH, that leads to the formation of isocyanide, and hence also known as Hofmann isocyanide synthesis.
For example: \[\ce{R - NH2 + CHCl3 + \underset{Alc.}{KOH} -> CHNC + 3KCl + 3H2O}\]
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संबंधित प्रश्न
Which of the following amines yields foul smelling product with holoform and alcoholic KOH?
(a) Ethyl amine
(b) Diethyl amine
(c) Triethyi amine
(d) Ethyl methyl amine
Write the chemical equations involved when aniline is treated with the following reagents:
CHCI3 + KOH
Give a balanced equation for the following name reaction:
Carbylamine reaction
Write equations of the following reactions:
Carbyl amine reaction
Which one of the following shows the carbylamine reaction in the presence of heat?
A primary amine, \[\ce{RNH2}\] can be reacted with \[\ce{CH3-X}\] to get secondary amine, \[\ce{R-NHCH3}\] but the only disadvantage is that 3° amine and quaternary ammonium salts are also obtained as side products. Can you suggest a method where \[\ce{RNH2}\] forms only 2° amine?
Assertion: Acetanilide is less basic than aniline.
Reason: Acetylation of aniline results in decrease of electron density on nitrogen.
What happens when reactions:
Aniline reacts with chloroform in the presence of alcoholic potassium hydroxide
What is the action of the following reagents on ethyl amine?
Chloroform and caustic potash
(CH3)4NI is an example of ______.
