Posted: Fri Mar 11, 2016 4:18 pm
Do you determine which element substituent is prioritized to get the equatorial position in a chair conformation based on higher atomic number or higher atomic radius? For example with Br and Cl as substituents.
Re: Equatorial Priority
Posted: Fri Mar 11, 2016 4:58 pm
The larger substituent will have a greater preference towards the equatorial position because it is more stable. For instance, in cis-1-propyl-3-methylcyclohexane, the propyl would be in the equatorial position because it is the larger and more bulky substituent, while the methyl would be in the axial position.
In your question, I believe the Br would be in the equatorial position.