Trans vs Cis stablity

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Natalie Yakobian
Posts: 45
Joined: Fri Sep 25, 2015 3:00 am

Trans vs Cis stablity

Postby Natalie Yakobian » Mon Mar 07, 2016 10:15 pm

For cyclohexanes in chair postion is Trans always more stable than cis?

Thanks!

hpage204
Posts: 19
Joined: Fri Sep 25, 2015 3:00 am

Re: Trans vs Cis stablity

Postby hpage204 » Mon Mar 07, 2016 11:07 pm

Someone asked a really similar question in the 11:00 lecture today... I believe the answer was that trans is more stable in most cases, but depending on the size and number of the substituents, this isn't always the case. I think the best option is to picture the alignment of the molecule and try and find the arrangement that minimizes steric interaction between the substituents.

804584179
Posts: 32
Joined: Fri Sep 25, 2015 3:00 am

Re: Trans vs Cis stablity

Postby 804584179 » Thu Mar 10, 2016 2:13 am

trans would probably always be more stable because say you have something like a br coming off of carbon 1, then making the isomer trans would allow for the br to be in an equatorial position and have less steric strain

Natalie Yakobian
Posts: 45
Joined: Fri Sep 25, 2015 3:00 am

Re: Trans vs Cis stablity

Postby Natalie Yakobian » Fri Mar 11, 2016 8:57 am

Thanks!


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