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Chapter 28: Question 28.33 (page 1141)

Drawthe products of each reaction.

(a.)

(b.)

Short Answer

Expert verified

Answer

(a.)

Reaction a.

(b.)Reaction b.

Step by step solution

01

Reactions of carbohydrates

Both alpha and beta forms of the D-glucose react with amines under mildly acidic conditions at the anomeric carbon and form the mixture of alpha and beta N-glycosides.

02

Reaction a.

The reactant monosaccharide is α-D-glucopyranose. On reaction with amines under mildly acidic conditions, anomeric carbon reacts with it and forms the mixture of methyl substituted α-N-glucoside and β-N-glycoside.

Product formation in reaction a.

03

Reaction b.

The reactant monosaccharide is β-D-glucopyranose. On reaction with amines under mildly acidic conditions, anomeric carbon reacts with it and forms the mixture of methyl-substituted α-N-glycoside and β-N-glycoside.

Product formation in reaction b.

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