2. For each chiral center, prioritize the groups (1-4) attached to each chiral center. Based on your priorities, assign R or S configurations to the chiral center. H H₂CH₂C OH Br H CH3 H L L L H₂C Br H OH CH3 H₂CH₂C H₂CH₂C H₂CH₂C

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2. For each chiral center, prioritize the groups (1-4) attached to each chiral center. Based on your
priorities, assign R or S configurations to the chiral center.
H
H₂CH₂C
OH
Br
H
CH3
H
L L L
H₂C
Br
H
OH
CH3
H₂CH₂C
H₂CH₂C
H₂CH₂C
Transcribed Image Text:2. For each chiral center, prioritize the groups (1-4) attached to each chiral center. Based on your priorities, assign R or S configurations to the chiral center. H H₂CH₂C OH Br H CH3 H L L L H₂C Br H OH CH3 H₂CH₂C H₂CH₂C H₂CH₂C
Expert Solution
Step 1

For R , S configuration following steps are required

  • Give each atom connected to the chiral center a priority based on its atomic number .The higher atomic number ,the higher priority .If connected atom is same then we see next connected atom .Higher priority gets 1 and lowest priority gets 4 .
  • Draw an arrow starting from priority -1 and going to priority -3 .
  • If priority -4 is away from view(or) priority -4 is on vertical line in fischer projection form then 

                    Clockwise -> R 

Anticlockwise -> S 

  • If priority -4 is towards view (or) priority -4 is on Horizontal line in fischer form 

Clockwise -> S 

Anticlockwise -> R 

-> Even change at chiral center does not change configuration.

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