Chapter 13: Q.13.69 (page 467)

The sugar D-gulose is a sweet-tasting syrup. (13.3, 13.4)
a. Draw the Fischer projection for L-gulose.
b. Draw the Haworth structures for $α$ - and $β$ -D-gulose.

Short Answer

Expert verified

Part a) An Anomer of a saccharide only differs in its structure at the anomeric carbon.

Part b) Anomeric carbon is the functional group of the carbohydrate, which is usually the carboxyl group attached to it.

Part c) Epimeres, differ at only one chiral center, not the anomeric carbon.

Step by step solution

Introduction (Part a)

Aldehydo-L-glucose is the L-enantiomer of aldehydo-glucose. It is a L-glucose and an aldehydo-glucose. It is an enantiomer of analdehydo-D-glucose.

Draw the Fischer projection for L-gulose. (Part a)

$- OH$ on farthest chiral $C$ is on left so it is $L -$ Glucose

b) Draw the Haworth structures for α - and β-D-gulose.

The Haworth structure.

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The sugar D-gulose is a sweet-tasting syrup. (13.3, 13.4)
a. Draw the Fischer projection for L-gulose.
b. Draw the Haworth structures for $α$ - and $β$ -D-gulose.

Short Answer

Step by step solution

Introduction (Part a)

Draw the Fischer projection for L-gulose. (Part a)

b) Draw the Haworth structures for α - and β-D-gulose.

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The sugar D-gulose is a sweet-tasting syrup. (13.3, 13.4)a. Draw the Fischer projection for L-gulose.b. Draw the Haworth structures for α- and β-D-gulose.

Short Answer

Step by step solution

Introduction (Part a)

Draw the Fischer projection for L-gulose. (Part a)

b) Draw the Haworth structures for α - and β-D-gulose.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

The Earths Atmosphere

Chemical Analysis

Chemistry Branches

Organic Chemistry

Chemical Reactions

Kinetics

Study anywhere. Anytime. Across all devices.

The sugar D-gulose is a sweet-tasting syrup. (13.3, 13.4)
a. Draw the Fischer projection for L-gulose.
b. Draw the Haworth structures for $α$ - and $β$ -D-gulose.