Organic Chemistry
Organic Chemistry
2nd Edition
ISBN: 9781118452288
Author: David R. Klein
Publisher: WILEY
Question
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Chapter 23, Problem 70PP

 (a)

Interpretation Introduction

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 functional groups.  For example:

Organic Chemistry, Chapter 23, Problem 70PP , additional homework tip  1

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 Introduction

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 ammonia in the presence of sodium cyanoborohydride as a reducing agent and a proton source in the reaction medium to produce primary amines.

Organic Chemistry, Chapter 23, Problem 70PP , additional homework tip  2

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.

Organic Chemistry, Chapter 23, Problem 70PP , additional homework tip  3

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.

Organic Chemistry, Chapter 23, Problem 70PP , additional homework tip  4

To find: Using a reductive amination, prepare the major product of (b)

Decide the reaction and the nature of the product

(c)

Interpretation Introduction

 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

Organic Chemistry, Chapter 23, Problem 70PP , additional homework tip  5

(d)

Interpretation Introduction

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

Blurred answer

Chapter 23 Solutions

Organic Chemistry

Ch. 23.4 - Prob. 10CCCh. 23.4 - Prob. 11CCCh. 23.5 - Prob. 2LTSCh. 23.5 - Prob. 12PTSCh. 23.5 - Prob. 13PTSCh. 23.6 - Prob. 3LTSCh. 23.6 - Prob. 14PTSCh. 23.6 - Prob. 15ATSCh. 23.6 - Prob. 16ATSCh. 23.6 - Prob. 17ATSCh. 23.7 - Prob. 18PTSCh. 23.7 - Prob. 19PTSCh. 23.7 - Prob. 20PTSCh. 23.7 - Prob. 21ATSCh. 23.8 - Prob. 22CCCh. 23.8 - Prob. 23CCCh. 23.8 - Prob. 24CCCh. 23.9 - Prob. 5LTSCh. 23.9 - Prob. 25PTSCh. 23.9 - Prob. 26ATSCh. 23.9 - Prob. 27ATSCh. 23.9 - Prob. 28ATSCh. 23.10 - Prob. 29CCCh. 23.11 - Prob. 30CCCh. 23.11 - Prob. 6LTSCh. 23.11 - Prob. 31PTSCh. 23.11 - Prob. 32ATSCh. 23.11 - Prob. 33ATSCh. 23.12 - Prob. 34CCCh. 23.12 - Prob. 35CCCh. 23.13 - Prob. 36CCCh. 23.13 - Prob. 37CCCh. 23 - Prob. 38PPCh. 23 - Prob. 39PPCh. 23 - Prob. 40PPCh. 23 - Prob. 41PPCh. 23 - Prob. 42PPCh. 23 - Prob. 43PPCh. 23 - Prob. 44PPCh. 23 - Prob. 45PPCh. 23 - Prob. 46PPCh. 23 - Prob. 47PPCh. 23 - Prob. 48PPCh. 23 - Prob. 49PPCh. 23 - Prob. 50PPCh. 23 - Prob. 51PPCh. 23 - Prob. 52PPCh. 23 - Prob. 53PPCh. 23 - Prob. 54PPCh. 23 - Prob. 55PPCh. 23 - Prob. 56PPCh. 23 - Prob. 57PPCh. 23 - Prob. 58PPCh. 23 - Prob. 59PPCh. 23 - Prob. 60PPCh. 23 - Prob. 61PPCh. 23 - Prob. 62PPCh. 23 - Prob. 63PPCh. 23 - Prob. 64PPCh. 23 - Prob. 65PPCh. 23 - Prob. 66PPCh. 23 - Prob. 67PPCh. 23 - Prob. 68PPCh. 23 - Prob. 69PPCh. 23 - Prob. 70PPCh. 23 - Prob. 71PPCh. 23 - Prob. 72PPCh. 23 - Prob. 73PPCh. 23 - Prob. 74PPCh. 23 - Prob. 75PPCh. 23 - Prob. 76PPCh. 23 - Prob. 77IPCh. 23 - Prob. 78IPCh. 23 - Prob. 79IPCh. 23 - Prob. 80IPCh. 23 - Prob. 81IPCh. 23 - Prob. 82IPCh. 23 - Prob. 83IPCh. 23 - Prob. 84IPCh. 23 - Prob. 85IPCh. 23 - Prob. 86IPCh. 23 - Prob. 87IPCh. 23 - Prob. 88IPCh. 23 - Prob. 89IPCh. 23 - Prob. 90IPCh. 23 - Prob. 91CPCh. 23 - Prob. 92CPCh. 23 - Prob. 93CPCh. 23 - Prob. 94CPCh. 23 - Prob. 95CPCh. 23 - Prob. 96CPCh. 23 - Prob. 97CPCh. 23 - Prob. 98CP
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