Question
Asked Oct 10, 2019
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A pair of theoretical enantiomers is named below. For each stereoisomer, draw the structure. Be sure to
specify the stereochemistry via wedge-and-dash bonds
(R)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
(S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
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A pair of theoretical enantiomers is named below. For each stereoisomer, draw the structure. Be sure to specify the stereochemistry via wedge-and-dash bonds (R)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol (S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol

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Expert Answer

Step 1

The structure of the following enantiomers has to be drawn-

  1. (S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
  2. (R)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol
Step 2

Stereoisomers are the molecules that have the same molecular formula and same arrangement of atoms but different spatial orientation (3-D orientation).

Stereoisomers are mainly of two types – enantiomers and diastereomers.

Now, Enantiomers are stereoisomers that are mirror images of each other which are non-superimposable.

Step 3

To name enantiomers, R/S system is used.

For naming-

  1. Assign the priority to the groups attached. The group with the higher atomic number is given the first priority.
  2. The lowest priority substituent should always point away from the viewer.
  3. Now draw an arrow from the highest priority group to the 2nd highest priority ...
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Clockwise Anti-Clockwise R enantiomer S enantiomer

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