Question

Dnes the two chair conformations for each of the following compounds and indi zable conformation:

Answer 1

I have drawn all the four structure on paper with two chair forms each along with their stability.

Please find attached files for answer

Hope it will clear your concept

* The tert butyl group is bulky group and the bulky group at equator position is always a stable product in cyclohexane because it will have very less interaction and repulsion with other substituents.*
1 cis-1-tertbutyl-3-methylcycloxane. by day at tertbutyl-3-metylcyclohexane, Ring Ciz cis cé, e) 3 ab toz ca, ah (more stable) In cis from of t-testbutyl-3 metlyl cyclohexane this ce, el from is more stable because the test butyl group and methyl group are away from each other so there are no interaction. 2) trans-1-tertbutyl-3 metyl cyclohexane ch &-cho trans Ring flip 05 Ас, form is more transce, a) stable. 7 chc-cu 'trans-lae Chi Foam less stable. In this from the ce, a) feom is more stable than (are) form of cyclohexane because the tert-butyl group is belky group and bulky group at equatorial position is more stable form of cyclohexcone than axial position.

is 1- tertbutyl-4 methyl cyclohexane CH3 de joy sing City & more Stable flipi cis-a, e cis-e,a In the trans- cis 1,4 disubstituted cyclohexane the (e,a) toom. is more stable than care, Ferm because the tert- butyl (bulky) group is at equatorial position. bulky group at 'é position is more stable from. trans - 1 tertbutyl-4-merlyl cyclohexane. sing clb clip more trans-ee. Stable trans-a, a. In the two trans from of, 1,4 disubstitued cyclohexane the Trans e, e ferm is more stable than a. a' ferm because the bulky group is at equatorial positions 1.e away from each other. so more stable.