Organic Chemistry
Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
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Chapter 24, Problem 24.22P
Interpretation Introduction

(a)

Interpretation:

The Fisher projection for the aldaric acid and the structure of 1, 4-lactone which is derived from the oxidation of D-galactose is to be draw.

Concept introduction:

Fischer projections is a two dimensional representation of organic compounds. It was proposed to represent glucose molecules. The carbon chain is represented vertically; the hydoxy groups and hydrogen atoms are represented horizontally, according to their stereochemistry.

Interpretation Introduction

(b)

Interpretation:

The Fisher projection for the aldaric acid and the structure of 1, 4-lactone which is derived from the oxidation of D-mannose is to be draw.

Concept introduction:

Fischer projections is a two dimensional representation of organic compounds. It was proposed to represent glucose molecules. The carbon chain is represented vertically; the hydoxy groups and hydrogen atoms are represented horizontally, according to their stereochemistry.

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Students have asked these similar questions
Will the reduction using NaBH4 of D-glucose and D-galactose give an optically active or inactive compound?Explain why and draw your solution.
A D-aldopentose A is reduced to an optically active alditol. Upon Kiliani–Fischer synthesis, A is converted to two Daldohexoses, B and C. B is oxidized to an optically inactive aldaric acid. C is oxidized to an optically active aldaric acid. What are the structures of A–C?
A) Draw the structure of any aldohexose in the pyranose ring form. B) Draw the structure of the anomer of the aldohexose you drew above. C) How many asymmetric carbons (chiral centers) does each of these structures have? D) How many stereoisomers of the aldohexoses you drew are theoretically possible?
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