How do you draw a (2R ,3R )-2,3-dichloropentane?

1 Answer
Sep 19, 2015

Answer:

The structure is below...

Explanation:

Both #Cl# groups should be pointing backward. After assigning priorities, the rotation will be counter-clock wise (which means #S#) however because the highest priority group is pointing backward, the #S# becomes #R#.

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A video on labeling #R# and #S# is here: