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Question
Write a short note on the following.
Ammonolysis
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Solution
When Alkyl halides (or) benzyl halides are heated with alcoholic ammonia in a sealed tube, mixtures of 1°, 2° and 3° amines and quaternary ammonium salts are obtained.
\[\ce{CH3 - Br ->[\overset{\bullet\bullet}{N}H3][\Delta] \underset{(1° amine)}{CH3 - \overset{\bullet\bullet}{N}H2} ->[CH3Br] \underset{(2° amine)}{(CH3)2\overset{\bullet\bullet}{N}H} ->[CH3Br] \underset{(3° amine)}{(CH3)3}\overset{\bullet\bullet}{N} ->[CH3Br] \underset{(Quarternary ammonium bromide)}{(CH3)4\overset{+}{N}B\overset{-}{r}}}\]
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RELATED QUESTIONS
Choose the most correct option.
Carbylamine test is given by ____________.
The product formed by the reaction an aldehyde with a primary amine ____________.
The order of basic strength for methyl substituted amines in aqueous solution is ____________.
Write a short note on the following:
Gabriel phthalimide synthesis
Write a short note on the following.
Carbylamine reaction
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.
Arrange the following:
In increasing order of solubility in water:
C6H5NH2, (C2H5)2NH, C2H5NH2
\[\begin{array}{cc}
\ce{O}\phantom{.........}\\
||\phantom{.........}\\
\ce{H - \underset{(A)}{C} - NH - CH3}
\end{array}\]
and
\[\begin{array}{cc}
\ce{O}\\
||\\
\ce{CH3 - \underset{(B)}{C} - NH2}
\end{array}\]
are which type of isomers?
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:
