It should be accounted for the observation that the given β − k e t o a c i d can be heated for the extended periods at temperature above its melting point without noticeable decarboxylation. Concept introduction: Carboxylic acids contain a carbonyl attached to a hydroxyl group as shown below, If carboxylic acid is heated to a very high temperature then of carbon dioxide will be eliminated from it this reaction is known as decarboxylation . Simple carboxylic acids do not decarboxylate readily. Decarboxylation of β − k e t o a c i d is shown below, The mechanism of thermal decarboxylation involves two processes, (i) Redistribution of electrons in a cyclic transition state. (ii) Cyclic transition state possesses keto-enol tautomerism.

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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 17.9, Problem 17.6P

Interpretation Introduction

Interpretation: It should be accounted for the observation that the given β−ketoacid can be heated for the extended periods at temperature above its melting point without noticeable decarboxylation.

Concept introduction:

Carboxylic acids contain a carbonyl attached to a hydroxyl group as shown below,

If carboxylic acid is heated to a very high temperature then of carbon dioxide will be eliminated from it this reaction is known as decarboxylation. Simple carboxylic acids do not decarboxylate readily.

Decarboxylation of β−ketoacid is shown below,

The mechanism of thermal decarboxylation involves two processes,

(i) Redistribution of electrons in a cyclic transition state.

(ii) Cyclic transition state possesses keto-enol tautomerism.

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Record the amounts measured and calculate the percent yield for Part 2 in the table below. Dicyclopentadiene measured in volume Cyclopentadiene measured in grams 0 Measured Calculated Mol Yield Mass (g) or Volume (mL) Mass (g) or Volume (ml) 0.6 2.955 Part 2 Measurements and Results Record the amounts measured and calculate the percent yield for Part 2 in the table below. 0.588 0.0044 2.868 0.0434 N/A Table view List view Measured Calculated Mol $ Yield Melting Point (C) Mass (g) or Volume (ml) Mass (g) or Volume (ml.) Cyclopentadiene 0.1 0.08 0.001189 measured in volume Maleic Anhydride 0.196 N/A cis-norbornene-5,6-endo- dicarboxylic anhydride 0.041 0.0002467 N/A N/A N/A 0.002 N/A N/A 128

Draw the condensed structural formula and line-angle formula for each: 2,3-dimethylheptane 3-bromo-2-pentanol 3-isopropyl-2-hexene 4-chlorobutanoic acid

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Answer 2

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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 17.9, Problem 17.6P

Interpretation Introduction

Interpretation: It should be accounted for the observation that the given β−ketoacid can be heated for the extended periods at temperature above its melting point without noticeable decarboxylation.

Concept introduction:

Carboxylic acids contain a carbonyl attached to a hydroxyl group as shown below,

If carboxylic acid is heated to a very high temperature then of carbon dioxide will be eliminated from it this reaction is known as decarboxylation. Simple carboxylic acids do not decarboxylate readily.

Decarboxylation of β−ketoacid is shown below,

The mechanism of thermal decarboxylation involves two processes,

(i) Redistribution of electrons in a cyclic transition state.

(ii) Cyclic transition state possesses keto-enol tautomerism.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

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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 17.9, Problem 17.6P

Interpretation Introduction

Interpretation: It should be accounted for the observation that the given β−ketoacid can be heated for the extended periods at temperature above its melting point without noticeable decarboxylation.

Concept introduction:

Carboxylic acids contain a carbonyl attached to a hydroxyl group as shown below,

If carboxylic acid is heated to a very high temperature then of carbon dioxide will be eliminated from it this reaction is known as decarboxylation. Simple carboxylic acids do not decarboxylate readily.

Decarboxylation of β−ketoacid is shown below,

The mechanism of thermal decarboxylation involves two processes,

(i) Redistribution of electrons in a cyclic transition state.

(ii) Cyclic transition state possesses keto-enol tautomerism.

Expert Solution & Answer

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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 17.9, Problem 17.6P

Interpretation Introduction