5. Complete these diagrams to show chair conformations of these compounds. CH3
Provide the correct hexagonal conformation or Ring-flipped chair conformations clohexane (as parent chain) compounds. Then circle the more stable chair B-flipped chair conformations for the following Circle the more stable chair conformation. Flat Hexagon structure Chair conformation A Chair conformation B Сна Br L Br Z CH3
9. (20 points) Examine the structure shown below. Draw BOTH chair conformations of this compound. SHOW ALL BONDS AND ALL HYDROGENS. Which confirmation has the lowest energy? Explain your choice in one or more complete sentence. CI CH3 H3C CH3 9. (20 points) Examine the structure shown below. Draw BOTH chair conformations of this compound. SHOW ALL BONDS AND ALL HYDROGENS. Which confirmation has the lowest energy? Explain your choice in one or more complete sentence. CI CH3 H3C CH3
Indicate the relationship between the two structures in the pair. Are they chair conformations of the same molecule? If so, are they conformational diastereomers, conformational enantiomers, or identical? If they are not conformations of the same molecule, what is their stereochemical relationship? Indicate the relationship between the two structures in the pair. Are they chair conformations of the same molecule? If so, are they conformational diastereomers, conformational enantiomers, or identical? If they are not conformations of the same molecule, what...
13. Below are the planar hexagon representations for two substituted cyclohexanes. Using the chair conformations provided, draw the chair conformation for these compounds a and b and indicate the most stable conformation (if applicable) for each of these two compounds. 3 points) CH C(CH3)3 CH3 CH3 CH3 н H H н А B Compound A "flip" Compound B "flip"
Draw both chair conformations for each of the following compounds. In each case, identify the more stable chair conformation: (a) Methylcyclohexane (b) trans-1,2-Diisopropylcyclohexane (c) cis-1,3-Diisopropylcyclohexane (d) trans-1,4-Diisopropylcyclohexane
4. Draw the lowest energy chair conformations for both of the following compounds. Which is more stable? Briefly explain. (8pts) 18 II llora nobsefoin smw.odo a) I c) Both have the same stability b) п 5. Draw the lowest energy chair conformations for both of the following compounds. Which is more stable? Briefly explain (8pts) beuo zed n bos enonsmothop beagndoa ow odb TotoKD ( .a1alil o enoemogoo boaee.ove dos 10 d II a) I b) II c) Both have...
4.51 Draw both chair conformations for each of the following compounds. In each case, identify the more stable chair conformation: (a) Methylcyclohexane (b) trans-1,2-Diisopropylcyclohexane (c) cis-1,3-Diisopropylcyclohexane (d) trans-1,4-Diisopropylcyclohexane
For the following pairs of isomers draw both the chair conformations. Based on your chair conformations state which isomer will be more stable: Draw the most stable conformation looking down the C3-C4 bond of 4-bromo-3,6-dimethylhept-1- -3-ol in the Newman projection where C3 is the front carbon and C4 is the back carbon: Starting with the conformation you have drawing show the 5 other conformations representing 60 degree rotations of the BACK carbon in an anti-clockwise direction. For the six conformations...
U. Complete the specified Newman projections for the two chair conformations of cis-1-isopropyl-3- methylcyclohexane. It may be helpful to add some missing axial and equatorial hydrogen atoms to the chair conformations before you start. (0.3 pts) H3C CH3 C(1) to C(6) view C(1) to C(2) view C(1) to C(6) view 11. Indicate whether the rate of each interconversion is finite (measureable) or near zero at 25°C. (0.3 pts)
9781118110453 SKILLBUILDER 4.12: Practice the skill Draw both chair conformations of the following compounds and identify the more stable: (a) (c) (e) 7-57