Organic Chemistry
Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
Question
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Chapter 24, Problem 24.31P
Interpretation Introduction

(a)

Interpretation:

The products obtained from the reaction of lactobionic acid and 1M aqueous HCl are to be stated.

Concept introduction:

The hydrolysis of the disaccharides is done in the presence of acid as a catalyst. The hydrolysis of the disaccharide is the breaking of the glycosidic linkage to give two monosaccharides units. Glycosidic linkage is an acetal linkage and acetal linkage hydrolysis takes place in the presence of an acidic solution.

Interpretation Introduction

(b)

Interpretation:

The products obtained from the reaction (+)-lactose and dimethyl sulfate in presence of NaOH are to be stated.

Concept introduction:

The methylation of the hydroxyl group of sugars is an important reaction. The methylation of hydroxyl groups is done with the help of methylating agent, dimethyl sulfate in the presence of strong base sodium hydroxide.

Interpretation Introduction

(c)

Interpretation:

The products obtained from the reaction product of part (b) and 1M aqueous H2SO4 are to be stated.

Concept introduction:

The hydrolysis of the disaccharides is done in the presence of acid as a catalyst. The hydrolysis of the disaccharide is the breaking of the glycosidic linkage to give two monosaccharides units. Glycosidic linkage is an acetal linkage and acetal linkage hydrolysis takes place in the presence of an acidic solution.

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