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 138: 7.17


1 - Cl 2 - (Right) C 3 - (Left) C 4 - H

Work Step by Step

1. Make a list with all atoms connected to the stereocenter, and rank them by atomic number. - H, Cl, C, C. By atomic number: - Cl, C, C, H. 2. As we can see, there are 2 equal atoms, so we will have to find which one has the priority. - We can do that by analyzing the atoms connected to them: - To the left carbon: C, H, H. - To the right carbon: Cl, H, H. ** Since there is a chloro on the right carbon, it will get priority. ** Cl > C (atomic number) 3. Now, put the numbers in order: 1 - Cl 2 - (Right) C 3 - (Left) C 4 - H
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