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प्रश्न
Write a short note on the following.
Mustard oil reaction
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उत्तर
When primary amines are treated with carbon disuiphide (CS2), N-alkyldithio carbamic acid is formed which on subsequent treatment with HgCI2, gives an alkyl isothiocyanate.
\[\begin{array}{cc}
\phantom{}\ce{S}\phantom{........................}\ce{S}\phantom{...............................}\\
\phantom{}||\phantom{........................}||\phantom{...............................}\\
\ce{CH3 - N - H + C = S -> \underset{(N-methyl dithiocarbamic acid)}{CH3 - NH - C - SH} ->[HgCl2] \underset{\underset{(Mustard oil smell)}{Methyl isothiocyanate}}{CH3 - N = C = S} + HgS + 2HCl}\\
|\phantom{..........................................................................}\\
\ce{\underset{(Methylamine)}{H}}\phantom{..........................................................................}
\end{array}\]
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संबंधित प्रश्न
Classify the following amine as primary, secondary or tertiary:
(C2H5)2NH
Isobutylamine is an example of ______.
How are amines classified?
Write a short note on the following.
Ammonolysis
Write a short note on the following:
Gabriel phthalimide synthesis
Account for the following.
Ethylamine is soluble in water whereas aniline is not.
Arrange the following:
In increasing order of solubility in water:
C6H5NH2, (C2H5)2NH, C2H5NH2
Arrange the following.
In increasing order of boiling point C6H5OH, (CH3)2NH, C2H5NH2.
Assertion A: Aniline on nitration yields ortho, meta and para nitro derivatives of aniline.
Reason R: Nitrating mixture is a storng acidic mixture.
In the light of the above statements, choose the correct answer from the options given below:
Among the following, which is the strongest base?
