Question

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.

a） (S)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol

b） (R)-5,5-dibromo-3-fluoro-2-methyl-3-hexanol

Answer 1

Solution :-

While drawing the structure we use the wedge and dash lines.

Following image shows the structures of the given names.

If the 4^th priority group is below the plane and arrow moving is clockwise then it is R configuration. If the 4^th group is not below the plane then configuration is reversed

If the 4^th priority group is below the plane and arrow moving is anticlockwise then it is S configuration. If the 4^th group is not below the plane then configuration is reversed