Assign the configuration R or S. **5.5 Assign the configuration as R or S.***Chemical Structure Diagram:*The image displays a chemical structure of a five-membered ring. The specific groups attached are as follows:1. A carbonyl group (C=O) is attached to the ring.2. An alcohol group (OH) is bonded to a chiral center.3. A methyl group (CH₃) is represented by a dashed bond, indicating it's positioned away from the observer, or into the plane.To determine the configuration as R or S:- Identify the chiral center: The carbon atom bonded to the OH and CH₃ groups is the chiral center.- Assign priority to the substituents based on atomic number: 1. OH group (highest priority due to oxygen) 2. Ring structure continuation 3. Methyl group (CH₃, lowest priority)- Observe the orientation of the groups around the chiral center.The goal is to determine if the configuration around the chiral center is clockwise (R) or counterclockwise (S), with the lowest priority group oriented away from the observer.

Answered: 5.5 Assign the configuration as R or S.…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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Assign the configuration R or S.

**5.5 Assign the configuration as R or S.**

*Chemical Structure Diagram:*

The image displays a chemical structure of a five-membered ring. The specific groups attached are as follows:

1. A carbonyl group (C=O) is attached to the ring.
2. An alcohol group (OH) is bonded to a chiral center.
3. A methyl group (CH₃) is represented by a dashed bond, indicating it's positioned away from the observer, or into the plane.

To determine the configuration as R or S:

- Identify the chiral center: The carbon atom bonded to the OH and CH₃ groups is the chiral center.
- Assign priority to the substituents based on atomic number:
1. OH group (highest priority due to oxygen)
2. Ring structure continuation
3. Methyl group (CH₃, lowest priority)
- Observe the orientation of the groups around the chiral center.

The goal is to determine if the configuration around the chiral center is clockwise (R) or counterclockwise (S), with the lowest priority group oriented away from the observer.

Expert Solution

Step 1

The molecule given is assigned priority order based on Cahn-Ingold-Prelog rules based on atomic number.

Placing least priority group at bottom of the plane, if priority (1-2-3-4) moves in clockwise direction assigned R-configuration and if priority (1-2-3-4) moves in anti-clockwise direction assigned S-configuration.

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