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miatortilla miatortilla
wrote...
12 years ago
Hi. So say you have like cis-1-bromo-3-methylcyclohexane in one of its chair conformations and then did a ring flip to get the other chair conformation. Are those two different conformations enantiomers of one another? I believe so since I believe the R and S switch at each stereocenter, but I just wanted a second opinon. Thanks!
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#1
12 years ago
No. To demonstrate this to yourself, draw the structure as a flat hexagon. You will see that the cis-compound is (1R)-bromo-(3S)-methylcyclohexane. Once that is established, no amount of chair-boat wriggling will change the R-S configuration at either carbon.
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