(a)
Interpretation: Major products for the given set of reactions have to be found.
Concept Introduction:
The nitro group present in the compound is reduced to amino group by using Fe, Zn, Sn or SnCl2 in the presence of aqueous acid followed by the treatment with base such as NaOH. This reaction is more mild approach. It can be carried out in the presence of the other
To find: Using a reduction followed by base treatment, prepare the major product of (a)
Find the reaction of the starting material of (a) with Fe, H3O+
(b)
Interpretation: Major products for the given set of reactions have to be found.
Concept Introduction:
Sodium cyanoborohydride is a strong reducing agent than sodium borohydride. It reduces the carbonyl group into amine group in a rapid way. So, it is called as reductive amination reactions.
Aldehyde or ketone group is reacted with primary amine in the presence of sodium cyanoborohydride as a reducing agent and a proton source in the reaction medium to produce secondary amines.
Aldehyde or ketone group is reacted with secondary amine in the presence of sodium cyanoborohydride as a reducing agent and a proton source in the reaction medium to produce tertiary amines.
To find: Using a reductive amination, prepare the major product of (b)
Decide the reaction and the nature of the product
(c)
Interpretation: Major products for the given set of reactions have to be found.
Concept introduction:
The reduction of lithium aluminum hydride on nitriles followed by water work-up gives amine with an additional carbon atom in their chain. This type of reaction is applied to increase the carbon skeleton and change in the identity of the functional group.
To find: The major product of the reaction (c)
Give for the formation of lithium salt by reduction
(d)
Interpretation: Major products for the given set of reactions have to be found.
Concept introduction:
The reduction of lithium aluminum hydride on nitriles followed by water work-up gives amine with an additional carbon atom in their chain. This type of reaction is applied to increase the carbon skeleton and change in the identity of the functional group.
To find: The major product of the reaction (d)
Give for the formation of lithium ion by reduction

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Chapter 22 Solutions
ORGANIC CHEMISTRY,SOLNS...-ETEXT+BOX
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