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प्रश्न
Write a short note on the following:
Carbylamine reaction
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उत्तर
Aliphatic and aromatic primary amines on heating with chloroform and ethanolic potassium hydroxide form isocyanides or carbylamines which are foul smelling substances. Secondary and tertiary amines do not show this reaction. This reaction is known as carbylamine reaction or isocyanide test and is used as a test for primary amines.
\[\ce{R-NH2 + CHCl3 + 3KOH ->[Heat] R-NC + 3KCl + 3H2O}\]
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संबंधित प्रश्न
Arrange the following in increasing order of their basic strength in aqueous solution:
\[\ce{CH3NH2, (CH3)3N, (CH3)2NH}\]
Arrange the following:
Aniline, p-nitroaniline, p-methylaniline - in the increasing order of their basic strength
Why does NH3 act as a Lewis base?
Arrange the following:
In increasing order of basic strength:
C6H5NH2, C6H5N(CH3)2, (C2H5)2NH and CH3NH2
Arrange the following:
In increasing order of basic strength:
Aniline, p-nitroaniline and p-toluidine
Arrange the following:
In increasing order of basic strength:
C6H5NH2, C6H5NHCH3, C6H5CH2NH2
Write the structures of the main products of the following reactions:
Write the structures of the main products of the following reactions:
Arrange the following in decreasing order of their basic strength:
C6H5NH2, C2H5NH2, (C2H5)2NH2, NH3
The correct decreasing order of basic strength of the following species is ______.
\[\ce{H2O, NH3, OH-, NH^{-}2}\]
Explain why \[\ce{MeNH2}\] is stronger base than \[\ce{MeOH}\]?
When ethanol is mixed with ammonia and passed over alumina the compound formed is which compound?
Which of the following statement is true about methyl amine?
Which of the following is most basic?
By the presence of a halogen atom in the ring, what is the effect of this on basic property of aniline?
Account for the following:
Arrange the following compounds in the increasing order of their basic strength in aqueous solution: CH3NH2,(CH3)3N,(CH3)2NH
Which of the following compound cannot be produced if 1-propane amine is treated with NaNO2 and HCl?
