The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified. Concept Introduction: > The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride ( PCl 3 ) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction. > A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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Answer 1

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Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction

Interpretation:

The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified.

Concept Introduction:
>
The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride (PCl3) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction.
>
A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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How many signals do you expect in the H NMR spectrum for this molecule? Br Br Write the answer below. Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H atoms that would contribute to the same signal as the H already highlighted red. Note for advanced students: In this question, any multiplet is counted as one signal. Number of signals in the 'H NMR spectrum. For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in top molecule For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in bottom molecule

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Answer 2

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction

Interpretation:

The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified.

Concept Introduction:
>
The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride (PCl3) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction.
>
A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

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Check out a sample textbook solution

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Answer 3

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction

Interpretation:

The structure of valine is to be stated. The rotation of valine that is prepared by halogenation of 3- methylbutanoic acid is to be identified.

Concept Introduction:
>
The carboxylic acids that contain α- hydrogen atoms in their structure on reaction with halogen in the presence of phosphorous trichloride (PCl3) results in the formation of α- halo carboxylic acids as the final products. Such a reaction is called as Hell-Volhard-Zelinsky reaction.
>
A mixture that has equal amount of enantiomers is commonly known as racemic mixture. Enantiomers have non-superimposable mirror images of one another and therefore; they rotate the plane of polarized light in opposite but equal direction. The racemic mixture is optically inactive in nature.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 21.1, Problem 5P

Interpretation Introduction