Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction. Concept introduction: The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs. Given information: The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

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Answer 1

Question

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

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Answer 2

Question

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

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Answer 3

Question

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

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Answer 4

Question

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

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Answer 5

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

Answer 6

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

Answer 7

Chapter 28.7, Problem 12P

Interpretation Introduction

Interpretation:

Determine the mechanism for the cleavage of β-cyanoethyl protective group by using aqueous ammonia and state the type of occurring reaction.

Concept introduction:

The cleavage of β-cyanoethyl protective group occurs according to the β-elimination mechanism. In β-elimination mechanism, the bond β to the nucleophilic pair of electrons breaks. The elimination reaction involves the breaking of the sigma (σ) bond and the formation of new pie (π) bond. In this process a lone pair electron forms a double bond as the leaving group departs.

Given information:

The cleavage of β-cyanoethyl protective group can be done by aqueous ammonia. The by-product of this reaction is acrylonitrile.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 28.1 - Draw the full structure of the DNA dinucleotide...Ch. 28.1 - Draw the full structure of the RNA dinucleotide...Ch. 28.2 - What sequence of bases on one strand of DNA is...Ch. 28.4 - Show how uracil can form strong hydrogen bonds to...Ch. 28.4 - What RNA base sequence is complementary to the...Ch. 28.4 - From what DNA base sequence was the following RNA...Ch. 28.5 - List codon sequences for the following amino...Ch. 28.5 - List anticodon sequences on the tRNAs carrying the...Ch. 28.5 - What amino acid sequence is coded by the following...Ch. 28.5 - What is the base sequence in the original DNA...

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Chapter 28 Solutions