ORGANIC CHEM W/BIOLOGICAL TOP. ACCESS
ORGANIC CHEM W/BIOLOGICAL TOP. ACCESS
6th Edition
ISBN: 9781264382545
Author: SMITH
Publisher: MCG CUSTOM
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Chapter 5.9, Problem 27P
Interpretation Introduction

(a)

Interpretation: The four stereogenic centers in sorbitol are to be labeled as R or S.

Concept introduction: The stereogenic centers with R,S configuration are assigned according to Cahn-Ingold-Prelog rules. According to these rules, the substituents attached to stereogenic centers are given priority. On moving from higher priority to lower priority substituent in clockwise direction, the compound is assigned with R configuration. On moving from higher priority to lower priority substituent in anticlockwise direction, the compound is assigned with S configuration.

Interpretation Introduction

(b)

Interpretation: The relation between sorbitol and A is to be stated.

Concept introduction: The stereogenic centers with R,S configuration are assigned according to Cahn-Ingold-Prelog rules. According to these rules, the substituents attached to stereogenic centers are given priority. R,S configuration can be used to determine the relation between two compounds. Enantiomer of a compound has opposite configuration. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.

Interpretation Introduction

(c)

Interpretation: The relation between sorbitol and B is to be stated.

Concept introduction: The stereogenic centers with R,S configuration are assigned according to Cahn-Ingold-Prelog rules. According to these rules, the substituents attached to stereogenic centers are given priority. R,S configuration can be used to determine the relation between two compounds. Enantiomer of a compound has opposite configuration. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.

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