ORGANIC CHEMISTRY 1 TERM ACCESS
ORGANIC CHEMISTRY 1 TERM ACCESS
3rd Edition
ISBN: 9781119661511
Author: Klein
Publisher: WILEY
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Chapter 7, Problem 70PP

(a)

Interpretation Introduction

Interpretation:

The plausible mechanism for the given transformations should be drawn and identified.

Concept Introduction:

Dehydration reaction:

Removal of water molecule from the reaction when the alcohol is treated with strong acid like sulfuric acid.

  ORGANIC CHEMISTRY 1 TERM ACCESS, Chapter 7, Problem 70PP , additional homework tip  1

Alcohol is reaction with concentrated sulfuric acid, first alcohol gets protonated forms carbocation (more stable carbocation) followed by elimination of proton (H+) yields alkene as a product. The stability of carbocation is given below,

Tertiary carbocation is more stable than the secondary, secondary carbocation is more stable than primary.

ORGANIC CHEMISTRY 1 TERM ACCESS, Chapter 7, Problem 70PP , additional homework tip  2

In dehydration reaction, sulfuric acid is act as a proton donor, and which is used to protonate the alcohol and makes carbocation therefore sulfuric acid is the driving force of the reaction. Dehydration reaction will not go without acid (sulfuric acid).

(b)

Interpretation Introduction

Interpretation:

The plausible mechanism for the given transformations should be drawn and identified.

Concept Introduction:

Dehydration reaction:

Removal of water molecule from the reaction when the alcohol is treated with strong acid like sulfuric acid.

  ORGANIC CHEMISTRY 1 TERM ACCESS, Chapter 7, Problem 70PP , additional homework tip  3

Alcohol is reaction with concentrated sulfuric acid, first alcohol gets protonated forms carbocation (more stable carbocation) followed by elimination of proton (H+) yields alkene as a product. The stability of carbocation is given below,

Tertiary carbocation is more stable than the secondary, secondary carbocation is more stable than primary.

ORGANIC CHEMISTRY 1 TERM ACCESS, Chapter 7, Problem 70PP , additional homework tip  4

In dehydration reaction, sulfuric acid is act as a proton donor, and which is used to protonate the alcohol and makes carbocation therefore sulfuric acid is the driving force of the reaction. Dehydration reaction will not go without acid (sulfuric acid).

(c)

Interpretation Introduction

Interpretation:

The plausible mechanism for the given transformations should be drawn and identified.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via E1 (the reaction depends only on the substrate involved in the reaction) or E2 (the reaction depends on both of the substituents in the reaction) mechanism.

E1 reaction is a unimolecular elimination reaction to produce alkene compounds in which carbocation is formed as an intermediate and it has stepwise mechanism.

E2 reaction is a bimolecular elimination reaction in which alkene compounds formed in a single step.

Example,

Alkenes are formed when alcohols are treated with strong acid via eliminating one β-proton and the OH group of the alcohol.

Alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

Curved arrows are used for drawing the mechanism of reaction.

The tertiary carbocation is more stable than secondary carbocation.

(d)

Interpretation Introduction

Interpretation:

The plausible mechanism for the given transformations should be drawn and identified.

Concept Introduction:

Elimination Reaction: It is just reverse reaction of addition where substituent from the given molecule is removed via E1 (the reaction depends only on the substrate involved in the reaction) or E2 (the reaction depends on both of the substituents in the reaction) mechanism.

E1 reaction is a unimolecular elimination reaction to produce alkene compounds in which carbocation is formed as an intermediate and it has stepwise mechanism.

E2 reaction is a bimolecular elimination reaction in which alkene compounds formed in a single step.

Example,

Alkenes are formed when alcohols are treated with strong acid via eliminating one β-proton and the OH group of the alcohol.

Alkenes are formed when alkyl halides are treated with bases via eliminating one β-proton and one α-halo group of the alkyl halide.

Curved arrows are used for drawing the mechanism of reaction.

The tertiary carbocation is more stable than secondary carbocation.

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Chapter 7 Solutions

ORGANIC CHEMISTRY 1 TERM ACCESS

Ch. 7.4 - Prob. 9CCCh. 7.5 - Prob. 10CCCh. 7.6 - Prob. 11CCCh. 7.7 - Provide a systematic name for each of the...Ch. 7.7 - Prob. 13CCCh. 7.7 - Prob. 14CCCh. 7.7 - Prob. 15CCCh. 7.7 - Prob. 16CCCh. 7.7 - Prob. 17CCCh. 7.8 - Prob. 3LTSCh. 7.8 - Predict the major and minor products for each of...Ch. 7.8 - Prob. 19PTSCh. 7.8 - Prob. 20ATSCh. 7.8 - Prob. 4LTSCh. 7.8 - Prob. 21PTSCh. 7.8 - Prob. 23CCCh. 7.8 - Prob. 24CCCh. 7.8 - Prob. 5LTSCh. 7.8 - Prob. 25PTSCh. 7.8 - Prob. 26ATSCh. 7.9 - Prob. 6LTSCh. 7.9 - Prob. 27PTSCh. 7.9 - Prob. 28ATSCh. 7.9 - Prob. 29CCCh. 7.9 - Prob. 30CCCh. 7.9 - Prob. 31CCCh. 7.9 - Prob. 32CCCh. 7.9 - Draw all of the expected products for each of the...Ch. 7.10 - Prob. 35CCCh. 7.10 - Prob. 36CCCh. 7.11 - Prob. 7LTSCh. 7.11 - Prob. 37PTSCh. 7.11 - Prob. 38ATSCh. 7.11 - Prob. 39ATSCh. 7.11 - Prob. 40ATSCh. 7.12 - Prob. 41CCCh. 7.12 - Prob. 42CCCh. 7.12 - Prob. 43CCCh. 7.13 - Prob. 8LTSCh. 7.13 - Prob. 44PTSCh. 7.13 - Prob. 45PTSCh. 7.13 - Prob. 46ATSCh. 7 - Prob. 47PPCh. 7 - Prob. 48PPCh. 7 - Prob. 49PPCh. 7 - Prob. 50PPCh. 7 - Prob. 51PPCh. 7 - Prob. 52PPCh. 7 - Prob. 53PPCh. 7 - Prob. 54PPCh. 7 - Prob. 55PPCh. 7 - Prob. 56PPCh. 7 - Prob. 57PPCh. 7 - Prob. 58PPCh. 7 - Prob. 59PPCh. 7 - Prob. 60PPCh. 7 - Prob. 61PPCh. 7 - Prob. 62PPCh. 7 - Prob. 63PPCh. 7 - Prob. 64PPCh. 7 - Prob. 65PPCh. 7 - Prob. 66PPCh. 7 - Prob. 67PPCh. 7 - Prob. 68PPCh. 7 - Prob. 69PPCh. 7 - Prob. 70PPCh. 7 - Prob. 71PPCh. 7 - Prob. 72PPCh. 7 - Predict which of the following substrates will...Ch. 7 - Prob. 74PPCh. 7 - Prob. 75PPCh. 7 - Prob. 76PPCh. 7 - Prob. 77PPCh. 7 - Prob. 78PPCh. 7 - Prob. 79PPCh. 7 - Prob. 80IPCh. 7 - Prob. 81IPCh. 7 - Prob. 82IPCh. 7 - Prob. 83IPCh. 7 - Prob. 84IPCh. 7 - Prob. 85IPCh. 7 - Prob. 87IPCh. 7 - Prob. 88IPCh. 7 - Prob. 89IPCh. 7 - Prob. 90IPCh. 7 - Prob. 91IPCh. 7 - Prob. 92IPCh. 7 - Prob. 94IPCh. 7 - Prob. 95IPCh. 7 - Prob. 96IPCh. 7 - Prob. 97IPCh. 7 - Prob. 98IPCh. 7 - For the following substitution reaction, which...Ch. 7 - Prob. 100IPCh. 7 - Prob. 101IPCh. 7 - Prob. 102CPCh. 7 - Prob. 104CPCh. 7 - Prob. 105CPCh. 7 - When 2-iodobutane is treated with a variety of...
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