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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
The product formed by the reaction an aldehyde with a primary amine ____________.
IUPAC name for the amine is:
\[\begin{array}{cc}
\phantom{.}\ce{CH3}\\
|\phantom{..}\\
\ce{CH3 - N - C - CH2 - CH3}\\
\phantom{.}|\phantom{.....}|\phantom{........}\\
\phantom{}\ce{CH3}\phantom{..}\ce{C2H5}\phantom{....}
\end{array}\]
Account for the following.
Gabriel phthalimide synthesis is preferred for synthesising primary amines.
Account for the following.
Although amino group is o- and p-directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Identify A, B and C.
\[\ce{CH3 - NO2 ->[LiAlH4] A ->[2CH3CH2Br] B ->[H2SO4] C}\]
How will you convert diethylamine into N-nitrosodiethylamine?
The following amine can be classified as (C2H5)2NH:
Arrange the following in the increasing order of their basic strength:
C2H5NH2, C6H5NH2, (C2H5)2NH
Write short note on Ammonolysis.
