Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy
Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy
3rd Edition
ISBN: 9781119320524
Author: Klein
Publisher: WILEY
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Chapter 21, Problem 63PP

(a)

Interpretation Introduction

Interpretation: The reagents that are used to make the given compound of aldol condensation have to be found.

Concept Introduction:

Retro synthetic analysis:

It is the analysis of the synthetic starting materials for a given compound through its precursors or fragments which are known as synthons. The synthons can be obtained by logical cleavage of the chemical bonds in the compounds. The resulted synthons will be therefore known as logical synthons.

Crossed aldol condensation:

Crossed aldol condensation reaction occurs, when an aldehyde and a ketone are heated in aqueous sodium hydroxide. The resulted product will be an α,β-unsaturatedaldehydeorketone that forms through elimination of water. The basic reagent NaOH gives a suitable environment for the reactants to involve in the condensation reaction.

General scheme:

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy, Chapter 21, Problem 63PP , additional homework tip  1

Retro aldol analysis:

To obtain the reactants of the given aldol product, the alpha beta unsaturated bond has to be cleaved using water molecule as shown here:

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy, Chapter 21, Problem 63PP , additional homework tip  2

(b)

Interpretation Introduction

Interpretation: The reagents that are used to make the given compound of aldol condensation have to be found.

Concept Introduction:

Retro synthetic analysis:

It is the analysis of the synthetic starting materials for a given compound through its precursors or fragments which are known as synthons. The synthons can be obtained by logical cleavage of the chemical bonds in the compounds. The resulted synthons will be therefore known as logical synthons.

Crossed aldol condensation:

Crossed aldol condensation reaction occurs, when an aldehyde and a ketone are heated in aqueous sodium hydroxide. The resulted product will be an α,β-unsaturatedaldehydeorketone that forms through elimination of water. The basic reagent NaOH gives a suitable environment for the reactants to involve in the condensation reaction.

General scheme:

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy, Chapter 21, Problem 63PP , additional homework tip  3

Retro aldol analysis:

To obtain the reactants of the given aldol product, the alpha beta unsaturated bond has to be cleaved using water molecule as shown here:

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy, Chapter 21, Problem 63PP , additional homework tip  4

(c)

Interpretation Introduction

Interpretation: The reagents that are used to make the given compound of aldol condensation have to be found.

Concept Introduction:

Retro synthetic analysis:

It is the analysis of the synthetic starting materials for a given compound through its precursors or fragments which are known as synthons. The synthons can be obtained by logical cleavage of the chemical bonds in the compounds. The resulted synthons will be therefore known as logical synthons.

Crossed aldol condensation:

Crossed aldol condensation reaction occurs, when an aldehyde and a ketone are heated in aqueous sodium hydroxide. The resulted product will be an α,β-unsaturatedaldehydeorketone that forms through elimination of water. The basic reagent NaOH gives a suitable environment for the reactants to involve in the condensation reaction.

General scheme:

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy, Chapter 21, Problem 63PP , additional homework tip  5

Retro aldol analysis:

To obtain the reactants of the given aldol product, the alpha beta unsaturated bond has to be cleaved using water molecule as shown here:

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy, Chapter 21, Problem 63PP , additional homework tip  6

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Chapter 21 Solutions

Organic Chemistry 3rd.ed. Klein Evaluation/desk Copy

Ch. 21.2 - Prob. 10CCCh. 21.2 - Prob. 11CCCh. 21.2 - Prob. 12CCCh. 21.2 - Prob. 13CCCh. 21.3 - Prob. 2LTSCh. 21.3 - Prob. 14PTSCh. 21.3 - Prob. 15PTSCh. 21.3 - Prob. 16ATSCh. 21.3 - Prob. 3LTSCh. 21.3 - Prob. 17PTSCh. 21.3 - Prob. 18ATSCh. 21.3 - Prob. 4LTSCh. 21.3 - Prob. 19PTSCh. 21.3 - Prob. 20ATSCh. 21.3 - Prob. 21CCCh. 21.3 - Prob. 22CCCh. 21.3 - Prob. 23CCCh. 21.4 - Prob. 24CCCh. 21.4 - Prob. 25CCCh. 21.4 - Prob. 26CCCh. 21.4 - Prob. 27CCCh. 21.4 - Prob. 28CCCh. 21.5 - Prob. 29CCCh. 21.5 - Prob. 30CCCh. 21.5 - Prob. 5LTSCh. 21.5 - Prob. 31PTSCh. 21.5 - Prob. 32ATSCh. 21.5 - Prob. 6LTSCh. 21.5 - Prob. 33PTSCh. 21.5 - Prob. 34ATSCh. 21.6 - Prob. 35CCCh. 21.6 - Prob. 36CCCh. 21.6 - Prob. 37CCCh. 21.6 - Prob. 7LTSCh. 21.6 - Prob. 38PTSCh. 21.6 - Prob. 39ATSCh. 21.6 - Prob. 40CCCh. 21.6 - Prob. 41CCCh. 21.7 - Prob. 8LTSCh. 21.7 - Prob. 42PTSCh. 21.7 - Prob. 43PTSCh. 21.7 - Prob. 9LTSCh. 21.7 - Prob. 45PTSCh. 21.7 - Prob. 46ATSCh. 21 - Prob. 47PPCh. 21 - Prob. 48PPCh. 21 - Prob. 49PPCh. 21 - Prob. 50PPCh. 21 - Prob. 51PPCh. 21 - Prob. 52PPCh. 21 - Prob. 53PPCh. 21 - Prob. 54PPCh. 21 - Prob. 55PPCh. 21 - Prob. 56PPCh. 21 - Prob. 57PPCh. 21 - Prob. 58PPCh. 21 - Prob. 59PPCh. 21 - Prob. 60PPCh. 21 - Prob. 61PPCh. 21 - Prob. 62PPCh. 21 - Prob. 63PPCh. 21 - Prob. 64PPCh. 21 - Prob. 65PPCh. 21 - Prob. 66PPCh. 21 - Prob. 67PPCh. 21 - Prob. 68PPCh. 21 - Prob. 69PPCh. 21 - Prob. 70PPCh. 21 - Prob. 71PPCh. 21 - Prob. 72PPCh. 21 - Prob. 73PPCh. 21 - Prob. 74PPCh. 21 - Prob. 75PPCh. 21 - Prob. 76PPCh. 21 - Prob. 77PPCh. 21 - Prob. 78PPCh. 21 - Prob. 79PPCh. 21 - Prob. 80PPCh. 21 - Prob. 81PPCh. 21 - Prob. 82PPCh. 21 - Prob. 83PPCh. 21 - Prob. 84PPCh. 21 - Prob. 85PPCh. 21 - Prob. 86PPCh. 21 - Prob. 87PPCh. 21 - Prob. 88PPCh. 21 - Prob. 89IPCh. 21 - Prob. 90IPCh. 21 - Prob. 91IPCh. 21 - Prob. 92IPCh. 21 - Prob. 93IPCh. 21 - Prob. 94IPCh. 21 - Prob. 95IPCh. 21 - Prob. 96IPCh. 21 - Prob. 97IPCh. 21 - Prob. 98IPCh. 21 - Prob. 99IPCh. 21 - Prob. 100IPCh. 21 - Prob. 101IPCh. 21 - Prob. 102IPCh. 21 - Prob. 103IPCh. 21 - Prob. 104IPCh. 21 - Prob. 105IPCh. 21 - Prob. 106IPCh. 21 - Prob. 107IPCh. 21 - Prob. 108IPCh. 21 - Prob. 109IPCh. 21 - Prob. 110IPCh. 21 - Prob. 111IPCh. 21 - Prob. 112IPCh. 21 - Prob. 113IPCh. 21 - Prob. 114IPCh. 21 - Prob. 115IPCh. 21 - Prob. 116CPCh. 21 - Prob. 117CPCh. 21 - Prob. 118CP
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