The six-membered ring structures of D-glucose has to be drawn. Concept introduction: Glucose is a monosaccharide with a molecular formula C 6 H 12 O 6 . It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

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Answer 1

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Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 86P

(a)

Interpretation Introduction

Interpretation:

The six-membered ring structures of D-glucose has to be drawn.

Concept introduction:

Glucose is a monosaccharide with a molecular formula C6H12O6. It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

(b)

Interpretation Introduction

Interpretation:

The major six-membered ring product of D-glucose has to be given.

Concept introduction:

Glucose is a monosaccharide with a molecular formula C6H12O6. It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

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a. In an aqueous solution, d-glucose exists in equilibrium with two six-membered ring compounds. Draw the structures of these compounds.b. Which of the six-membered ring compounds will be the major product?

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 86P

(a)

Interpretation Introduction

Interpretation:

The six-membered ring structures of D-glucose has to be drawn.

Concept introduction:

Glucose is a monosaccharide with a molecular formula C6H12O6. It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

(b)

Interpretation Introduction

Interpretation:

The major six-membered ring product of D-glucose has to be given.

Concept introduction:

Glucose is a monosaccharide with a molecular formula C6H12O6. It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

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Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 86P

(a)

Interpretation Introduction

Interpretation:

The six-membered ring structures of D-glucose has to be drawn.

Concept introduction:

Glucose is a monosaccharide with a molecular formula C6H12O6. It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

(b)

Interpretation Introduction

Interpretation:

The major six-membered ring product of D-glucose has to be given.

Concept introduction:

Glucose is a monosaccharide with a molecular formula C6H12O6. It can exist both as an open-chain structure and a cyclic structure. It has 16 aldohexose stereoisomers and D-glucose is one of them. It occurs more widely in nature than L-glucose. The intramolecular nucleophilic addition reaction between the aldehyde group and hydroxyl group forms a hemiacetal linkage which results in the cyclic ring structure.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 16, Problem 86P

(a)

Interpretation Introduction