15. What is the configuration of the carbon atom indicated by the dot? но (a) R (b) S (c) Not a chiral center 16. con What is the configuration of the carbon atom indicated by the dot? (a) R (b) S (c) Not a chiral center 17. Но (a) R (b) S (c) Not a chiral center "I What is the configuration of the carbon atom indicated by the dot? OH HO "I OH
15. What is the configuration of the carbon atom indicated by the dot? но (a) R (b) S (c) Not a chiral center 16. con What is the configuration of the carbon atom indicated by the dot? (a) R (b) S (c) Not a chiral center 17. Но (a) R (b) S (c) Not a chiral center "I What is the configuration of the carbon atom indicated by the dot? OH HO "I OH
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
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:15.
What is the configuration of the carbon atom indicated
by the dot?
но
(a) R
(b) S
(c) Not a chiral center
16.
Acco
core
(a) R
(b) S
(c) Not a chiral center
17.
What is the configuration of the carbon atom indicated
by the dot?
Ill
(a) R
(b) S
(c) Not a chiral center
HO
H
OH
What is the configuration of the carbon atom indicated
by the dot?
HO
I
OH
OH
Expert Solution
Step 1: Rules for determination of R and S configuration
Cahn Ingold Prelog rules:
1) Give the priority to the substituents attached at chirality center according to their atomic number.
2) If there are two substituents with equal rank, proceed along two substituent chain until there is point of difference and then give priority on that basis.
3) Start rotation from highest to lowest priority i.e. 1 to 4. If clockwise rotation then R and if anticlockwise rotation then S.
4) Exception: If the lowest priority group on wedge line or on horizontal line in Fischer projection then clockwise rotation means S and anticlockwise rotation means R
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