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

1 Answer
Dr. Hayek
Sep 19, 2015

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:

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