Principles of General, Organic, Biological Chemistry
Principles of General, Organic, Biological Chemistry
2nd Edition
ISBN: 9780073511191
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Chapter 14.5, Problem 14.16P

(a)

Interpretation Introduction

Interpretation:

Glycosidic linkage has to be located in cellobiose.

Concept Introduction:

Carbohydrates that are composed of two monosaccharide units are known as disaccharides.  This is formed when one hydroxyl group of one monosaccharide reacts with a hydroxyl group of another monosaccharide.  The bond formed between the two monosaccharide units is CO bond and this linkage is known as glycosidic linkage.  Carbon atom that is present in the glycosidic linkage is bonded to two oxygen atoms.

Depending on the orientation of the glycosidic linkage, the glycoside bond can be of two types.  They are α-glycoside and β-glycoside.  In α-glycoside, the bond is oriented down from the carbon C1 while in β-glycoside, the bond is oriented up from the carbon C1.

(b)

Interpretation Introduction

Interpretation:

The carbon atoms has to be numbered in both rings of cellobiose.

(c)

Interpretation Introduction

Interpretation:

Glycosidic linkage has to be classified as α or β in cellobiose.

Concept Introduction:

Refer part (a).

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Students have asked these similar questions
a. Identify the glycosidic linkage in disaccharide C, classify the glycosidic bond as α or β, and use numbers to designate its location.b. Identify the lettered compounds in the following reaction.
What is the type of glycosidic bond here?
Cellobiose, a disaccharide obtained by the hydrolysis of cellulose, is composed of two glucose units joined by a 1→4-β-glycoside bond. What is the structure of cellobiose?

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Principles of General, Organic, Biological Chemistry

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