Question

9. Draw the chair conformations of the substitute cyclohexanes showing the ring flip.. Show axial and equitorial bonds clearly. Label which conformation is most stable or if @ l-ethyl cyclohexane they are equal. O CIS-1,2-dimetyl cyclohexane © trans-1,2-dimethyl cyclohexane

Answer 1

W 1-othyl cyclohexane e qualora vend anial band a kule) Cathe la DH N Here the GH5 group is present at the anal position So two additional Ganesh butane interaction is present Caths gove here the color group is an is present at the equatorial position. so, no additional Youch butane interaction is present. So this form more stable . position. (6 cis- 1,2-dimethyl cyclohexane utz In both of this case me the group is at asiat position and mother the group is at equatorial position so both of them have some stability

(c) Pran 1,2-dimethyl cyclohexane H 14 14H TA 74 24,99 een u ob L A 1L to allo d' A TH A H À 914, 943 interaction i Here the (asa) conformer to present the two the group is present at asial position so it reffers syn t -go dianial intention whereas for le,e) conformer the two Me group is present at equatorial position, so no additional Gaucch Butane (96) interaction. Dule, e conformer de most stable