Open chain for the given carbohydrate that undergo acid-catalyzed cyclization to form α-D-fructopyranose should be drawn. Concept introduction: Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition. The –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring. Acid catalyzed reaction are followed by the deprotonation of Hydronium ion to water molecule and then protonation of this water molecule will return to Hydronium ion will take place. Pyranose: A six-member cyclic form of a monosaccharide is called as pyronose.

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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 24.5, Problem 22CC

Interpretation Introduction

Interpretation:

Open chain for the given carbohydrate that undergo acid-catalyzed cyclization to form α-D-fructopyranose should be drawn.

Concept introduction:

Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition.

The –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.

Acid catalyzed reaction are followed by the deprotonation of Hydronium ion to water molecule and then protonation of this water molecule will return to Hydronium ion will take place.

Pyranose: A six-member cyclic form of a monosaccharide is called as pyronose.

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く Predicting the pr Predict the major products of the following organic reaction: Δ Some important notes: • Draw the major product, or products, of the reaction in the drawing area below. • If there aren't any products, because no reaction will take place, check the box below the drawing area instead. • Be sure to use wedge and dash bonds when necessary, for example to distinguish between major products that are enantiomers. ? Click and drag to start drawing a structure.

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Answer 2

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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 24.5, Problem 22CC

Interpretation Introduction

Interpretation:

Open chain for the given carbohydrate that undergo acid-catalyzed cyclization to form α-D-fructopyranose should be drawn.

Concept introduction:

Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition.

The –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.

Acid catalyzed reaction are followed by the deprotonation of Hydronium ion to water molecule and then protonation of this water molecule will return to Hydronium ion will take place.

Pyranose: A six-member cyclic form of a monosaccharide is called as pyronose.

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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 24.5, Problem 22CC

Interpretation Introduction

Interpretation:

Open chain for the given carbohydrate that undergo acid-catalyzed cyclization to form α-D-fructopyranose should be drawn.

Concept introduction:

Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition.

The –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.

Acid catalyzed reaction are followed by the deprotonation of Hydronium ion to water molecule and then protonation of this water molecule will return to Hydronium ion will take place.

Pyranose: A six-member cyclic form of a monosaccharide is called as pyronose.

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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 24.5, Problem 22CC

Interpretation Introduction