Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given. Concept Introduction: Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid. Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows, Step 1: Add proton (protonation of Pinacol using acid catalyst). Step 2: Break a bond to give a stable molecules or ions (formation of carbocation). Step 3: 1, 2-shift (migration of substituent from α- to β- carbon). Step 4: deprotonation occurs (take a proton away).

Question

(a) Explain why an alkylamine is more basic than ammonia?(b) How would you convert(i) Aniline to nitrobenzene (ii) Aniline to iodobenzene

Answer 1

Question

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

(a) Explain why an alkylamine is more basic than ammonia?(b) How would you convert(i) Aniline to nitrobenzene (ii) Aniline to iodobenzene

(a) p-Nitrobenzaldehyde is reactive toward nucleophilic additions than p- more methoxybenzaldehyde. Draw both of the molecular structures and explain the observation. (b) Cyclohexanone forms a cyanohydrin in good yield but 2,2,6-trimethylcyclohexanone does not. Draw both of the molecular structures and explain the observation.

(b) Suggest a reasonable biosynthesis for the naturally occurring alkaloid coniine (isolated from hemlock), starting from octanoic acid. Coniine

Answer 2

Question

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 3

Question

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 5

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Answer 6

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

Answer 7

Chapter 23, Problem 23.37P

(a)

Interpretation Introduction

Interpretation:

Similarities between the mechanism of deamination of β- aminoalcohol using nitrous acid and Pinacol rearrangement has to be given.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

Answer 8

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

Answer 9

(b)

Interpretation Introduction

Interpretation:

Reason for the expansion of ring in the deamination of β- aminoalcohol using nitrous acid not in Pinacol rearrangement has to be explained.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Pinacol rearrangement: For all glycols Pinacol rearrangement occurs. Unsymmetrical vicinal diols reveal that –OH group that becomes protonated and leaves in the one that gives rise to more stable carbocation. Acid-catalyzed conversion of Pinacol to pinacolone followed by four step mechanism as follows,

Step 1: Add proton (protonation of Pinacol using acid catalyst).

Step 2: Break a bond to give a stable molecules or ions (formation of carbocation).

Step 3: 1, 2-shift (migration of substituent from α- to β- carbon).

Step 4: deprotonation occurs (take a proton away).

Answer 10

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Answer 11

(b)

Interpretation Introduction

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 15

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 16

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 17

Trending nowThis is a popular solution!

Answer 18

Trending nowThis is a popular solution!

Answer 19

Trending nowThis is a popular solution!

Answer 20

Trending now

Answer 21

This is a popular solution!

Answer 22

See solution

Check out sample textbook solution

Answer 23

Ch. 23.1 - Prob. 23.1P Ch. 23.2 - Prob. 23.2P Ch. 23.2 - Prob. 23.3P Ch. 23.2 - Prob. 23.4P Ch. 23.5 - Prob. 23.5P Ch. 23.5 - Prob. AQ Ch. 23.5 - What is the hybridization of the nitrogen in...Ch. 23.5 - Prob. CQ Ch. 23.5 - The pKas of the conjugate acids of aniline and...Ch. 23.5 - Prob. EQ

Interpretation: β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested. Concept Introduction: Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.

Chapter 23 Solutions

Interpretation:

β- Aminoalcohol that gives cyclohexanecarbaldehyde has to be suggested.

Concept Introduction:

Tiffeneau–Demjanov reaction: It is an organic reaction where 1-aminomethyl-cycloalkanol gets converted to an enlarged cycloketone by reacting with nitrous acid.