Why’s is choice IV the most stable in question 4 and for question 5 where do...
11. Build the chair and boat conformations and identify the most stable conformation. Identify the 1,3-diaxial interactions. 12. Draw the most stable conformation of (a) ethylcyclohexane (b) 3-isopropyl-1,1-dimethylcyclohexane (c) cis-1-tert-butyl-4-isopropylcyclohexane 13. Draw all possible conformations of 1,4-dimethylcyclohexane and identify the most stable conformation 14. (a) Draw both chair conformations of cis-1,2-dimethylcyclohexane, and determine which conformer is more stable. (b) Repeat for the trans isomer. (c) Predict which isomer (cis or trans) is more stable. 15. (a) Draw both chair conformations...
4. Draw the most stable and most unstable Newman Projection for the following molecules using the rotation around the C3-C4 bond (use the IUPAC rules to number the chain) 5. Draw the two chair conformations for each of the following cyclohexane derivatives and then choose the conformation that is the most stable. Br BA 3 3 3 $ 2879 So ya 6. For the following compounds, identify the chiral carbons with an asterisk (*) and for those that are not...
9. Rank the conformers of butane in order of decreasing stability, putting the most stable first. Н. CH3 H ac CH3 H CH3 CH3 HCH TH ΣΕΗ CH, HYH H HHHH н CH, I A) B) IV>I>II> III IV > I > III > II C) D) II > III >I> IV I>IV > II > III 10. Which of the following chair conformations represents trans-1,3-dimethylcyclohexane? A) I B) II C III D IV 11. Which of the following chair...
6. Build the cyclobutane ring and study the angle strain and torsional strain. Draw the structures to explain these factors. 7. The conformation of cyclobutane is slightly folded. Folding gives partial relief from the eclipsing of bonds, as shown in the Newman projection. Compare this actual structure with the hypothetical planar structure. Draw the relevant structures. 8. trans-1,2-Dimethylcyclobutane is more stable than cis-1,2-dimethylcyclobutane, but cis-1,3- dimethylcyclobutane is more stable than trans-1,3-dimethylcyclobutane. Use the molecular models to find the reasons for...
which are more stable? CH3 Cite CH3 CH Conformation 2 for isomer A (A2) Conformation 1 for isomer A (A1) Question 3: Which conformation is more stable for isomer A? Why? 3. Draw two different chair conformations for model isomer B CAB CH3 CAB Chs Conformation 2 for isomer B (B2) Conformation 1 for isomer B (B1) Question 4: Which conformation is more stable for isomer B? Why?
check and solve the empty ones please Which of the following is a Newman projection for the following compound as viewed down the indicated bond? сун 9. Draw the most stable conformer of the following compound. C/ 10. Draw the Newman projection for the highest energy and lowest energy conformation of the following compound. (size: Br > CH) Br me ) be ved me TH me heighest 11. Which of the following molecule is trans-1,2-dimethylcyclohexane? A) B) D) Othe 12....
Rank conformations bcd from most stable to least stable (most stable first) DUH ΤΗ HH Conformation A Question 2 (1.5 pts] Rank conformations B, C and D from most stable to least stable (most stable first C(CH.CH2CH3)3 CH(CH3)2 X H H H HH А Conformation B Conformation C Conformation D Question 3 (1.5 pts) Which one of the following statements about structure E is correct?
Select the most stable chair conformation for (1R,3S,5S)-1-chloro-3-isopropyl-5-methylcyclohexane. Select the most stable chair conformation for (1R,3S,5S)-1-chloro-3-isopropyl-5-methylcyclohexane Select the most stable chair conformation. CH(CH3)2 (1R,3S,5S)-1-chloro-3-isopropyl-5-methylcyclohexane Chair choices: CI CH CH3 CH3 (H3C)2HC CH(CH3)2 (H3C)2HC CH3 CH3 CH3 Cl CH(CH3)2 (H3C2HC (H3C)2HC
1. Now construct cis-1,2-dimethylcyclohexane in the chair conformation and draw it. Perform the ring flip and draw that conformation. Which of the two conformations is preferred? This compound is meso, find the conformation that accounts for this? 2. Construct and draw trans-1-ethyl-2-methylcyclohexane in the chair conformation. Perform the ring flip and draw that conformation. Which conformation is preferred/most stable? Why? Construct and draw the cis isomer in the most stable chair conformation. Perform the ring flip and draw that conformation....
Question 9 4 pts Which of the following chair conformations represents the most stable chair conformation of (15,3S)-1-isopropyl-3-methylcyclohexane? n o CY