ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<
ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<
3rd Edition
ISBN: 9781119781448
Author: Klein
Publisher: WILEY
Question
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Chapter 25.3, Problem 17CC

(a)

Interpretation Introduction

Interpretation:

Reagents required for preparation of methionine, histidine, phenylalanine and leucine by using Strecker synthesis need to be identified.

Concept introduction:

Strecker synthesis is a process in which the aldehyde reacts with ammonium chloride and alkali cyanide to form α -aminonitrile.  The formed α -aminonitrile is undergoes hydrolysis to give the respective amino acids.  The general scheme can be shown as,

ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<, Chapter 25.3, Problem 17CC , additional homework tip  1

Steps involved in Strecker synthesis are,

  • Protonation of carbonyl
  • Nucleophilic attack of ammonia to form imine
  • Attack of cyanide to form α -aminonitrile
  • Hydrolysis to give α -aminoacid

To find: the reagents used for synthesis of methionine by Strecker synthesis.

(b)

Interpretation Introduction

Interpretation:

Reagents required for preparation of methionine, histidine, phenylalanine and leucine by using Strecker synthesis need to be identified.

Concept introduction:

Strecker synthesis is a process in which the aldehyde reacts with ammonium chloride and alkali cyanide to form α -aminonitrile.  The formed α -aminonitrile is undergoes hydrolysis to give the respective amino acids.  The general scheme can be shown as,

ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<, Chapter 25.3, Problem 17CC , additional homework tip  2

Steps involved in Strecker synthesis are,

  • Protonation of carbonyl
  • Nucleophilic attack of ammonia to form imine
  • Attack of cyanide to form α -aminonitrile
  • Hydrolysis to give α -aminoacid

To find: the reagents used for synthesis of histidine by Strecker synthesis.

(c)

Interpretation Introduction

Interpretation:

Reagents required for preparation of methionine, histidine, phenylalanine and leucine by using Strecker synthesis need to be identified.

Concept introduction:

Strecker synthesis is a process in which the aldehyde reacts with ammonium chloride and alkali cyanide to form α -aminonitrile.  The formed α -aminonitrile is undergoes hydrolysis to give the respective amino acids.  The general scheme can be shown as,

ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<, Chapter 25.3, Problem 17CC , additional homework tip  3

Steps involved in Strecker synthesis are,

  • Protonation of carbonyl
  • Nucleophilic attack of ammonia to form imine
  • Attack of cyanide to form α -aminonitrile
  • Hydrolysis to give α -aminoacid

To find: the reagents used for synthesis of phenylalanine by Strecker synthesis.

d)

Interpretation Introduction

Interpretation:

Reagents required for preparation of methionine, histidine, phenylalanine and leucine by using Strecker synthesis need to be identified.

Concept introduction:

Strecker synthesis is a process in which the aldehyde reacts with ammonium chloride and alkali cyanide to form α -aminonitrile.  The formed α -aminonitrile is undergoes hydrolysis to give the respective amino acids.  The general scheme can be shown as,

ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<, Chapter 25.3, Problem 17CC , additional homework tip  4

Steps involved in Strecker synthesis are,

  • Protonation of carbonyl
  • Nucleophilic attack of ammonia to form imine
  • Attack of cyanide to form α -aminonitrile
  • Hydrolysis to give α -aminoacid

To find: the reagents used for synthesis of leucine by Strecker synthesis.

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Chapter 25 Solutions

ORGANIC CHEMISTRY (LL) >CUSTOM PACKAGE<

Ch. 25.2 - Prob. 10CCCh. 25.3 - Prob. 11CCCh. 25.3 - Prob. 12CCCh. 25.3 - Prob. 13CCCh. 25.3 - Prob. 2LTSCh. 25.3 - Prob. 14PTSCh. 25.3 - Prob. 15ATSCh. 25.3 - Prob. 16ATSCh. 25.3 - Prob. 17CCCh. 25.3 - Prob. 18CCCh. 25.3 - Prob. 19CCCh. 25.3 - Prob. 20CCCh. 25.4 - Prob. 3LTSCh. 25.4 - Prob. 21PTSCh. 25.4 - Prob. 22ATSCh. 25.4 - Prob. 23ATSCh. 25.4 - Prob. 24ATSCh. 25.4 - Prob. 25CCCh. 25.4 - Prob. 26CCCh. 25.4 - Prob. 27CCCh. 25.4 - Prob. 28CCCh. 25.4 - Prob. 29CCCh. 25.5 - Prob. 30CCCh. 25.5 - Prob. 4LTSCh. 25.5 - Prob. 31PTSCh. 25.5 - Prob. 32ATSCh. 25.5 - Prob. 33ATSCh. 25.6 - Prob. 5LTSCh. 25.6 - Prob. 34PTSCh. 25.6 - Prob. 35ATSCh. 25.6 - Prob. 36ATSCh. 25.6 - Prob. 6LTSCh. 25.6 - Prob. 37PTSCh. 25.6 - Prob. 38ATSCh. 25.7 - Prob. 39CCCh. 25 - Prob. 40PPCh. 25 - Prob. 41PPCh. 25 - Prob. 42PPCh. 25 - Prob. 43PPCh. 25 - Prob. 44PPCh. 25 - Prob. 45PPCh. 25 - Prob. 46PPCh. 25 - Prob. 47PPCh. 25 - Prob. 48PPCh. 25 - Prob. 49PPCh. 25 - Prob. 50PPCh. 25 - Prob. 51PPCh. 25 - Prob. 52PPCh. 25 - Prob. 53PPCh. 25 - Prob. 54PPCh. 25 - Prob. 55PPCh. 25 - Prob. 56PPCh. 25 - Prob. 57PPCh. 25 - Prob. 58PPCh. 25 - Prob. 59PPCh. 25 - Prob. 60PPCh. 25 - Prob. 61PPCh. 25 - Prob. 62PPCh. 25 - Prob. 63PPCh. 25 - Prob. 64PPCh. 25 - Prob. 65PPCh. 25 - Prob. 66PPCh. 25 - Prob. 67PPCh. 25 - Prob. 68PPCh. 25 - Prob. 69PPCh. 25 - Prob. 70PPCh. 25 - Prob. 71PPCh. 25 - Prob. 72PPCh. 25 - Prob. 73PPCh. 25 - Prob. 74PPCh. 25 - Prob. 75PPCh. 25 - Prob. 76PPCh. 25 - Prob. 77PPCh. 25 - Prob. 78PPCh. 25 - Prob. 79PPCh. 25 - Prob. 80PPCh. 25 - Prob. 81PPCh. 25 - Prob. 82PPCh. 25 - Prob. 83PPCh. 25 - Prob. 84IPCh. 25 - Prob. 85IPCh. 25 - Prob. 86IPCh. 25 - Prob. 87IPCh. 25 - Prob. 88IPCh. 25 - Prob. 89IPCh. 25 - Prob. 90CPCh. 25 - We saw in Section 25.6 that DCC can be used to...Ch. 25 - Prob. 92CP
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