Organic Chemistry As a Second Language, 3e: First Semester Topics

Published by John Wiley & Sons
ISBN 10: 111801040X
ISBN 13: 978-1-11801-040-2

Chapter 7 - Configurations - 7.2 Determining The Configurations Of A Stereocenter - Problems - Page 143: 7.29

Answer

The correct configuration for this structure is: "S"
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Work Step by Step

1. Switch the positions between the number that is on the dash and the number 4: 2. Now that it is on a dash, ignore it, and identify if the numbers are in clockwise or counterclockwise direction. ** Remember: Clockwise = "R", Counterclockwise = "S". 3. Since you have the configuration of the switched structure, you know that the original structure has the opposite configuration.
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