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H4 Br 2 3 o If the circle was clockwise, then assign R
o If counterclockwise, then assign S What do I do if the #4 group is coming forward? Br o Still assign priorities to the different groups
2 3 Br
4 1 o Find R/S as though #4 was going back.
2 3 Br
4 1 o Switch it. This one looks like S, so we have an R. What do I do if the #4 group is in the plane? 4 3 2F Cl 1 o You have several options.
o 1) Look at the molecule from another direction so that the #4 is
facing away from you. ...
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This note was uploaded on 03/06/2012 for the course CHEM 301 taught by Professor Sahli during the Spring '07 term at VCU.
- Spring '07